Module Name:    src
Committed By:   skrll
Date:           Tue Jun 11 13:01:48 UTC 2019

Modified Files:
        src/sys/arch/evbarm/conf: GENERIC files.generic
Added Files:
        src/sys/arch/arm/xilinx: files.zynq zynq7000_sdhc.c zynq7000_uart.c
            zynq7000_usb.c zynq_cemac.c zynq_platform.c zynq_uart.c
            zynq_uartreg.h zynq_uartvar.h zynq_usb.c zynq_usbreg.h
            zynq_usbvar.h

Log Message:
Initial commit of FDTised Xilinx Zynq-7000 support.  Tested with

qemu-system-arm -M xilinx-zynq-a9 -dtb zynq-zed.dtb -kernel netbsd.ub \
    -serial /dev/null -serial stdio

Based on a set of diffs/files from rjs@

sys/arch/arm/zynq is kept in place to allow existing kernels (e.g.
ZEDBOARD and PARALLELLA) to continue to build/work during the transition,
but eventually sys/arch/arm/zynq will be deleted.


To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/arch/arm/xilinx/files.zynq \
    src/sys/arch/arm/xilinx/zynq7000_sdhc.c \
    src/sys/arch/arm/xilinx/zynq7000_uart.c \
    src/sys/arch/arm/xilinx/zynq7000_usb.c \
    src/sys/arch/arm/xilinx/zynq_cemac.c \
    src/sys/arch/arm/xilinx/zynq_platform.c \
    src/sys/arch/arm/xilinx/zynq_uart.c \
    src/sys/arch/arm/xilinx/zynq_uartreg.h \
    src/sys/arch/arm/xilinx/zynq_uartvar.h src/sys/arch/arm/xilinx/zynq_usb.c \
    src/sys/arch/arm/xilinx/zynq_usbreg.h \
    src/sys/arch/arm/xilinx/zynq_usbvar.h
cvs rdiff -u -r1.37 -r1.38 src/sys/arch/evbarm/conf/GENERIC
cvs rdiff -u -r1.6 -r1.7 src/sys/arch/evbarm/conf/files.generic

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/arch/evbarm/conf/GENERIC
diff -u src/sys/arch/evbarm/conf/GENERIC:1.37 src/sys/arch/evbarm/conf/GENERIC:1.38
--- src/sys/arch/evbarm/conf/GENERIC:1.37	Thu Jun  6 22:41:02 2019
+++ src/sys/arch/evbarm/conf/GENERIC	Tue Jun 11 13:01:48 2019
@@ -1,5 +1,5 @@
 #
-#	$NetBSD: GENERIC,v 1.37 2019/06/06 22:41:02 jmcneill Exp $
+#	$NetBSD: GENERIC,v 1.38 2019/06/11 13:01:48 skrll Exp $
 #
 #	GENERIC ARM (aarch32) kernel
 #
@@ -147,6 +147,20 @@ makeoptions	DTS="
 	tegra124-venice2.dts
 
 	vexpress-v2p-ca15-tc1.dts
+
+	zynq-cc108.dts
+	zynq-microzed.dts
+	zynq-parallella.dts
+	zynq-zc702.dts
+	zynq-zc706.dts
+	zynq-zc770-xm010.dts
+	zynq-zc770-xm011.dts
+	zynq-zc770-xm012.dts
+	zynq-zc770-xm013.dts
+	zynq-zed.dts
+	zynq-zturn.dts
+	zynq-zybo.dts
+	zynq-zybo-z7.dts
 "
 
 options 	CPU_CORTEXA5
@@ -178,6 +192,8 @@ options 	SOC_TEGRA124
 
 options 	SOC_VIRT
 
+options 	SOC_ZYNQ7000
+
 options 	MULTIPROCESSOR
 
 pseudo-device 	openfirm	# /dev/openfirm
@@ -215,6 +231,8 @@ pseudo-device 	openfirm	# /dev/openfirm
 #options 	EARLYCONS=vexpress, CONSADDR=0x1c090000
 #options 	EARLYCONS=virt, CONSADDR=0x09000000
 
+#options 	EARLYCONS=zynq, CONSADDR=0xe0001000
+
 makeoptions	DEBUG="-g"	# compile full symbol table
 makeoptions	COPY_SYMTAB=1
 
@@ -275,6 +293,7 @@ sunxisramc*     at fdt? pass 4          
 
 # System Controller
 syscon*		at fdt? pass 1		# Generic System Controller
+#zynqslcr*	at fdt? pass 1		# Zynq 7000 system Controller
 
 # Timer
 a9tmr* 		at fdt? pass 2		# ARM Cortex A5/A9 Timer
@@ -372,6 +391,7 @@ pci*		at ppb?
 
 # Ethernet
 awge*		at fdt?			# Allwinner Gigabit Ethernet (GMAC)
+cemac*		at fdt?			# Cadence EMAC/GEM ethernet controller
 emac*		at fdt?			# Allwinner Fast/Gigabit Ethernet (EMAC)
 smsh*		at fdt?			# SMSC LAN9118
 
@@ -414,6 +434,7 @@ com*		at fdt?			# UART
 exuart*		at fdt?			# SSCOM UART
 plcom*		at fdt?			# ARM PL011 UART
 mesonuart*	at fdt?			# Amlogic Meson UART
+zynquart*	at fdt?			# Cadence UART
 
 # I2C controllers
 options 	I2C_MAX_ADDR=0xfff

Index: src/sys/arch/evbarm/conf/files.generic
diff -u src/sys/arch/evbarm/conf/files.generic:1.6 src/sys/arch/evbarm/conf/files.generic:1.7
--- src/sys/arch/evbarm/conf/files.generic:1.6	Sun Jan 27 02:08:38 2019
+++ src/sys/arch/evbarm/conf/files.generic	Tue Jun 11 13:01:48 2019
@@ -1,4 +1,4 @@
-#	$NetBSD: files.generic,v 1.6 2019/01/27 02:08:38 pgoyette Exp $
+#	$NetBSD: files.generic,v 1.7 2019/06/11 13:01:48 skrll Exp $
 #
 # A generic (aarch32) kernel configuration info
 #
@@ -25,3 +25,4 @@ include "arch/arm/samsung/files.exynos"
 include "arch/arm/sunxi/files.sunxi"
 include "arch/arm/vexpress/files.vexpress"
 include "arch/arm/virt/files.virt"
+include "arch/arm/xilinx/files.zynq"

Added files:

Index: src/sys/arch/arm/xilinx/files.zynq
diff -u /dev/null src/sys/arch/arm/xilinx/files.zynq:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/files.zynq	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,39 @@
+#	$NetBSD: files.zynq,v 1.1 2019/06/11 13:01:48 skrll Exp $
+#
+# Configuration info for Xilinx Zynq-7000 SoC
+#
+#
+
+file	arch/arm/xilinx/zynq_platform.c		soc_zynq
+
+# SOC parameters
+defflag	opt_soc.h				SOC_ZYNQ
+defflag	opt_soc.h				SOC_ZYNQ7000: SOC_ZYNQ
+
+# System Level Control Module
+#device	zynqslcr
+#attach	zynqslcr at fdt
+#file	arch/arm/xilinx/zynq_slcr.c		zynqslcr needs-flag
+
+# UART
+device	zynquart
+attach	zynquart at fdt
+file	arch/arm/xilinx/zynq_uart.c		zynquart needs-flag
+file	arch/arm/xilinx/zynq7000_uart.c		zynquart
+defflag	opt_zynquart.h				ZYNQUARTCONSOLE
+
+# Gigabit Ethernet Controller
+device	cemac: ether, ifnet, arp, mii, bus_dma_generic
+attach	cemac at fdt
+file	dev/cadence/if_cemac.c			cemac
+file	arch/arm/xilinx/zynq_cemac.c		cemac
+
+# USB controller
+attach	ehci at fdt with zynqusb
+file	arch/arm/xilinx/zynq_usb.c		zynqusb
+file	arch/arm/xilinx/zynq7000_usb.c		zynqusb
+
+# SD host controller for SD/MMC
+attach	sdhc at fdt with sdhc_fdt
+file	arch/arm/xilinx/zynq7000_sdhc.c		sdhc_fdt
+
Index: src/sys/arch/arm/xilinx/zynq7000_sdhc.c
diff -u /dev/null src/sys/arch/arm/xilinx/zynq7000_sdhc.c:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq7000_sdhc.c	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,134 @@
+/*	$NetBSD: zynq7000_sdhc.c,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+
+/*-
+ * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: zynq7000_sdhc.c,v 1.1 2019/06/11 13:01:48 skrll Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+#include <sys/pmf.h>
+#include <sys/systm.h>
+
+#include <machine/intr.h>
+
+#include <dev/sdmmc/sdhcvar.h>
+#include <dev/sdmmc/sdmmcvar.h>
+
+#include <dev/fdt/fdtvar.h>
+
+/* Clock */
+#define	ZYNQ7000_PS_CLK		(33333333) /* 33.333 MHz */
+
+struct sdhc_fdt_softc {
+	struct sdhc_softc  sc_sdhc;
+	/* we have only one slot */
+	struct sdhc_host *sc_hosts[1];
+
+	void *sc_ih;
+};
+
+static int sdhc_match(device_t, cfdata_t, void *);
+static void sdhc_attach(device_t, device_t, void *);
+
+CFATTACH_DECL_NEW(sdhc_fdt, sizeof(struct sdhc_fdt_softc),
+    sdhc_match, sdhc_attach, NULL, NULL);
+
+
+static const char * compatible[] = {
+	"arasan,sdhci-8.9a",
+	NULL
+};
+
+static int
+sdhc_match(device_t parent, cfdata_t cf, void *aux)
+{
+
+	struct fdt_attach_args * const faa = aux;
+
+	return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+static void
+sdhc_attach(device_t parent, device_t self, void *aux)
+{
+	struct sdhc_fdt_softc *sc = device_private(self);
+	struct fdt_attach_args * faa = aux;
+	const int phandle = faa->faa_phandle;
+	char intrstr[128];
+	bus_addr_t addr;
+	bus_size_t size;
+	bus_space_handle_t ioh;
+
+	if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+		aprint_error(": couldn't get registers\n");
+		return;
+	}
+
+	if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
+		aprint_error(": failed to decode interrupt\n");
+		return;
+	}
+
+	sc->sc_sdhc.sc_dev = self;
+
+	sc->sc_sdhc.sc_dmat = faa->faa_dmat;
+
+	if (bus_space_map(faa->faa_bst, addr, size, 0, &ioh)) {
+		aprint_error_dev(self, "can't map\n");
+		return;
+	}
+
+	aprint_normal(": SD/MMC host controller\n");
+	aprint_naive("\n");
+
+	sc->sc_sdhc.sc_host = sc->sc_hosts;
+	/* base clock frequency in kHz */
+	sc->sc_sdhc.sc_clkbase = ZYNQ7000_PS_CLK / 1000;
+	sc->sc_sdhc.sc_flags |= SDHC_FLAG_32BIT_ACCESS;
+
+	sc->sc_ih = fdtbus_intr_establish(phandle, 0, IPL_SDMMC, IST_LEVEL,
+	    sdhc_intr, &sc->sc_sdhc);
+	if (sc->sc_ih == NULL) {
+		aprint_error_dev(self, "failed to establish interrupt on %s\n",
+		    intrstr);
+		return;
+	}
+	aprint_normal_dev(self, "interrupting on %s\n", intrstr);
+
+	if (sdhc_host_found(&sc->sc_sdhc, faa->faa_bst, ioh, size)) {
+		aprint_error_dev(self, "can't initialize host\n");
+		return;
+	}
+
+	if (!pmf_device_register1(self, sdhc_suspend, sdhc_resume,
+		sdhc_shutdown)) {
+		aprint_error_dev(self,
+		    "can't establish power hook\n");
+	}
+}
Index: src/sys/arch/arm/xilinx/zynq7000_uart.c
diff -u /dev/null src/sys/arch/arm/xilinx/zynq7000_uart.c:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq7000_uart.c	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,121 @@
+/*	$NetBSD: zynq7000_uart.c,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+
+/*-
+ * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: zynq7000_uart.c,v 1.1 2019/06/11 13:01:48 skrll Exp $");
+
+#include "opt_soc.h"
+#include "opt_console.h"
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/device.h>
+
+#include <arm/xilinx/zynq_uartreg.h>
+#include <arm/xilinx/zynq_uartvar.h>
+
+#include <dev/fdt/fdtvar.h>
+
+static const char * compatible[] = {
+	"xlnx,xuartps",
+	"cdns,uart-r1p8",
+	NULL
+};
+
+int
+zynquart_match(device_t parent, struct cfdata *cf, void *aux)
+{
+	struct fdt_attach_args * const faa = aux;
+
+	return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+void
+zynquart_attach(device_t parent, device_t self, void *aux)
+{
+	struct fdt_attach_args * faa = aux;
+	const int phandle = faa->faa_phandle;
+	char intrstr[128];
+	bus_addr_t addr;
+	bus_size_t size;
+
+	if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+		aprint_error(": couldn't get registers\n");
+		return;
+	}
+
+	if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
+		aprint_error(": failed to decode interrupt\n");
+		return;
+	}
+
+	if (fdtbus_intr_establish(phandle, 0, IPL_SERIAL, IST_LEVEL,
+		zynquartintr, device_private(self)) == NULL) {
+		aprint_error_dev(self, "failed to establish interrupt on %s\n", intrstr);
+		return;
+	}
+	aprint_normal_dev(self, "interrupting on %s\n", intrstr);
+
+	zynquart_attach_common(parent, self, faa->faa_bst, addr, size, 0);
+}
+
+/*
+ * Console support
+ */
+
+static int
+zynq_uart_console_match(int phandle)
+{
+	return of_match_compatible(phandle, compatible);
+}
+
+static void
+zynq_uart_console_consinit(struct fdt_attach_args *faa, u_int uart_freq)
+{
+	const int phandle = faa->faa_phandle;
+	bus_space_tag_t bst = faa->faa_bst;
+	bus_addr_t addr;
+	tcflag_t flags;
+	int speed;
+
+	fdtbus_get_reg(phandle, 0, &addr, NULL);
+	speed = fdtbus_get_stdout_speed();
+	if (speed < 0)
+		speed = 115200;	/* default */
+	flags = fdtbus_get_stdout_flags();
+
+	if (zynquart_cons_attach(bst, addr, speed, flags))
+		panic("Cannot initialize zynq uart console");
+}
+
+static const struct fdt_console zynq_uart_console = {
+	.match = zynq_uart_console_match,
+	.consinit = zynq_uart_console_consinit,
+};
+
+FDT_CONSOLE(zynq_uart, &zynq_uart_console);
Index: src/sys/arch/arm/xilinx/zynq7000_usb.c
diff -u /dev/null src/sys/arch/arm/xilinx/zynq7000_usb.c:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq7000_usb.c	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,105 @@
+/*	$NetBSD: zynq7000_usb.c,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+/*-
+ * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: zynq7000_usb.c,v 1.1 2019/06/11 13:01:48 skrll Exp $");
+
+#include "opt_soc.h"
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/device.h>
+#include <sys/intr.h>
+#include <sys/kernel.h>
+#include <sys/systm.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdivar.h>
+#include <dev/usb/usb_mem.h>
+
+#include <dev/usb/ehcireg.h>
+#include <dev/usb/ehcivar.h>
+
+#include <arm/xilinx/zynq_usbvar.h>
+#include <arm/xilinx/zynq_usbreg.h>
+
+#include <dev/fdt/fdtvar.h>
+
+static const char * compatible[] = {
+	"xlnx,zynq-usb-2.20a",
+	NULL
+};
+
+static int zynqusb_match(device_t, struct cfdata *, void *);
+static void zynqusb_attach(device_t, device_t, void *);
+
+/* attach structures */
+CFATTACH_DECL_NEW(zynqusb, sizeof(struct zynqehci_softc),
+    zynqusb_match, zynqusb_attach, NULL, NULL);
+
+static int
+zynqusb_match(device_t parent, struct cfdata *cf, void *aux)
+{
+	struct fdt_attach_args * const faa = aux;
+
+	return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+static void
+zynqusb_attach(device_t parent, device_t self, void *aux)
+{
+	struct fdt_attach_args * faa = aux;
+	char intrstr[128];
+	const int phandle = faa->faa_phandle;
+	struct zynqehci_softc *sc = device_private(self);
+	ehci_softc_t *hsc = &sc->sc_hsc;
+	bus_addr_t addr;
+	bus_size_t size;
+
+	if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+		aprint_error(": couldn't get registers\n");
+		return;
+	}
+
+	if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
+		aprint_error(": failed to decode interrupt\n");
+		return;
+	}
+
+	if (fdtbus_intr_establish(phandle, 0, IPL_USB, IST_LEVEL, ehci_intr,
+		hsc) == NULL) {
+		aprint_error_dev(self, "failed to establish interrupt on %s\n",
+		    intrstr);
+		return;
+	}
+	aprint_normal_dev(self, "interrupting on %s\n", intrstr);
+
+	zynqusb_attach_common(parent, self, faa->faa_bst, faa->faa_dmat,
+	    addr, size, 0, ZYNQUSBC_IF_ULPI, ZYNQUSB_HOST);
+}
Index: src/sys/arch/arm/xilinx/zynq_cemac.c
diff -u /dev/null src/sys/arch/arm/xilinx/zynq_cemac.c:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq_cemac.c	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,96 @@
+/*	$NetBSD: zynq_cemac.c,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+/*-
+ * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: zynq_cemac.c,v 1.1 2019/06/11 13:01:48 skrll Exp $");
+
+#include "opt_soc.h"
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/device.h>
+#include <sys/kernel.h>
+#include <sys/intr.h>
+#include <sys/systm.h>
+
+#include <dev/cadence/cemacreg.h>
+#include <dev/cadence/if_cemacvar.h>
+
+#include <dev/fdt/fdtvar.h>
+
+static const char * compatible[] = {
+	"cdns,zynq-gem",
+	NULL
+};
+
+int
+cemac_match(device_t parent, cfdata_t cfdata, void *aux)
+{
+	struct fdt_attach_args * const faa = aux;
+
+	return of_match_compatible(faa->faa_phandle, compatible);
+}
+
+void
+cemac_attach(device_t parent, device_t self, void *aux)
+{
+	struct fdt_attach_args * const faa = aux;
+	const int phandle = faa->faa_phandle;
+	bus_space_handle_t ioh;
+	char intrstr[128];
+	bus_addr_t addr;
+	bus_size_t size;
+	int error;
+
+	if (fdtbus_get_reg(phandle, 0, &addr, &size) != 0) {
+		aprint_error(": couldn't get registers\n");
+		return;
+	}
+
+	error = bus_space_map(faa->faa_bst, addr, size, 0, &ioh);
+	if (error) {
+		aprint_error(": failed to map register %#lx@%#lx: %d\n",
+		    size, addr, error);
+		return;
+	}
+
+	if (!fdtbus_intr_str(phandle, 0, intrstr, sizeof(intrstr))) {
+		aprint_error(": failed to decode interrupt\n");
+		return;
+	}
+
+	if (fdtbus_intr_establish(phandle, 0, IPL_NET, 0, cemac_intr,
+		device_private(self)) == NULL) {
+		aprint_error_dev(self, "failed to establish interrupt on %s\n", intrstr);
+		return;
+	}
+	aprint_normal_dev(self, "interrupting on %s\n", intrstr);
+
+	cemac_attach_common(self, faa->faa_bst, ioh, faa->faa_dmat, CEMAC_FLAG_GEM);
+}
+
Index: src/sys/arch/arm/xilinx/zynq_platform.c
diff -u /dev/null src/sys/arch/arm/xilinx/zynq_platform.c:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq_platform.c	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,201 @@
+/*	$NetBSD: zynq_platform.c,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+
+/*-
+ * Copyright (c) 2019 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Nick Hudson
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "opt_console.h"
+#include "opt_soc.h"
+
+#include "arml2cc.h"
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: zynq_platform.c,v 1.1 2019/06/11 13:01:48 skrll Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/cpu.h>
+#include <sys/device.h>
+
+#include <dev/fdt/fdtvar.h>
+#include <arm/fdt/arm_fdtvar.h>
+
+#include <uvm/uvm_extern.h>
+
+#include <machine/bootconfig.h>
+
+#include <arm/cortex/a9tmr_var.h>
+#include <arm/xilinx/zynq_uartreg.h>
+
+#include <evbarm/fdt/platform.h>
+
+#include <libfdt.h>
+
+#include <arm/cortex/pl310_var.h>
+
+#define	ZYNQ_REF_FREQ	24000000
+
+#define	ZYNQ7000_DDR_PBASE	0x00000000
+#define	ZYNQ7000_DDR_SIZE	0x40000000
+
+#define	ZYNQ_IOREG_VBASE	KERNEL_IO_VBASE
+#define	ZYNQ_IOREG_PBASE	0xe0000000
+#define ZYNQ_IOREG_SIZE		0x00200000
+
+#define ZYNQ_GPV_VBASE		(ZYNQ_IOREG_VBASE + ZYNQ_IOREG_SIZE)
+#define ZYNQ_GPV_PBASE		0xf8900000
+#define ZYNQ_GPV_SIZE		0x00100000
+
+#define ZYNQ_ARMCORE_VBASE	(ZYNQ_GPV_VBASE + ZYNQ_GPV_SIZE)
+#define ZYNQ_ARMCORE_PBASE	0xf8f00000
+#define ZYNQ_ARMCORE_SIZE	0x00003000
+
+extern struct bus_space arm_generic_bs_tag;
+extern struct bus_space arm_generic_a4x_bs_tag;
+extern struct arm32_bus_dma_tag arm_generic_dma_tag;
+
+void zynq_platform_early_putchar(char);
+
+static const struct pmap_devmap *
+zynq_platform_devmap(void)
+{
+	static const struct pmap_devmap devmap[] = {
+		DEVMAP_ENTRY(ZYNQ_IOREG_VBASE,
+			     ZYNQ_IOREG_PBASE,
+			     ZYNQ_IOREG_SIZE),
+		DEVMAP_ENTRY(ZYNQ_GPV_VBASE,
+			     ZYNQ_GPV_PBASE,
+			     ZYNQ_GPV_SIZE),
+		DEVMAP_ENTRY(ZYNQ_ARMCORE_VBASE,
+			     ZYNQ_ARMCORE_PBASE,
+			     ZYNQ_ARMCORE_SIZE),
+		DEVMAP_ENTRY_END
+	};
+
+	return devmap;
+}
+
+static void
+zynq_platform_init_attach_args(struct fdt_attach_args *faa)
+{
+	faa->faa_bst = &arm_generic_bs_tag;
+	faa->faa_a4x_bst = &arm_generic_a4x_bs_tag;
+	faa->faa_dmat = &arm_generic_dma_tag;
+}
+
+void
+zynq_platform_early_putchar(char c)
+{
+#ifdef CONSADDR
+#define CONSADDR_VA     ((CONSADDR - ZYNQ_IOREG_PBASE) + ZYNQ_IOREG_VBASE)
+	volatile uint32_t *uartaddr = cpu_earlydevice_va_p() ?
+	    (volatile uint32_t *)CONSADDR_VA :
+	    (volatile uint32_t *)CONSADDR;
+
+	/* QEMU needs CR_TXEN to be set and CR_TXDIS to be unset */
+	uartaddr[UART_CONTROL / 4] = CR_TXEN;
+	while ((le32toh(uartaddr[UART_CHNL_INT_STS / 4]) & STS_TEMPTY) == 0)
+		;
+
+	uartaddr[UART_TX_RX_FIFO / 4] = htole32(c);
+#endif
+}
+
+static void
+zynq_platform_device_register(device_t dev, void *aux)
+{
+	prop_dictionary_t dict = device_properties(dev);
+
+	if (device_is_a(dev, "arma9tmr")) {
+		prop_dictionary_set_uint32(dict, "frequency",
+			ZYNQ_REF_FREQ / 4);
+	}
+}
+
+static u_int
+zynq_platform_uart_freq(void)
+{
+	return ZYNQ_REF_FREQ;
+}
+
+#define ZYNQ_ARMCORE_L2C_BASE	0x00002000
+#define ZYNQ_ARM_PL310_BASE	ZYNQ_ARMCORE_VBASE + ZYNQ_ARMCORE_L2C_BASE
+
+static void
+zynq_platform_bootstrap(void)
+{
+#if NARML2CC > 0
+	const bus_space_handle_t pl310_bh = ZYNQ_ARM_PL310_BASE;
+	arml2cc_init(&arm_generic_bs_tag, pl310_bh, 0);
+#endif
+
+	arm_fdt_cpu_bootstrap();
+
+	void *fdt_data = __UNCONST(fdtbus_get_data());
+	const int chosen_off = fdt_path_offset(fdt_data, "/chosen");
+	if (chosen_off < 0)
+		return;
+
+	if (match_bootconf_option(boot_args, "console", "fb")) {
+		const int framebuffer_off =
+		    fdt_path_offset(fdt_data, "/chosen/framebuffer");
+		if (framebuffer_off >= 0) {
+			const char *status = fdt_getprop(fdt_data,
+			    framebuffer_off, "status", NULL);
+			if (status == NULL || strncmp(status, "ok", 2) == 0) {
+				fdt_setprop_string(fdt_data, chosen_off,
+				    "stdout-path", "/chosen/framebuffer");
+			}
+		}
+	} else if (match_bootconf_option(boot_args, "console", "serial")) {
+		fdt_setprop_string(fdt_data, chosen_off,
+		    "stdout-path", "serial0:115200n8");
+	}
+}
+
+static void
+zynq_platform_reset(void)
+{
+
+}
+
+static const struct arm_platform zynq_platform = {
+	.ap_devmap = zynq_platform_devmap,
+	.ap_bootstrap = zynq_platform_bootstrap,
+	.ap_init_attach_args = zynq_platform_init_attach_args,
+	.ap_device_register = zynq_platform_device_register,
+	.ap_reset = zynq_platform_reset,
+	.ap_delay = a9tmr_delay,
+	.ap_uart_freq = zynq_platform_uart_freq,
+#if 0
+	.ap_mpstart = arm_fdt_cpu_mpstart,
+#endif
+};
+
+
+ARM_PLATFORM(zynq, "xlnx,zynq-7000", &zynq_platform);
Index: src/sys/arch/arm/xilinx/zynq_uart.c
diff -u /dev/null src/sys/arch/arm/xilinx/zynq_uart.c:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq_uart.c	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,2168 @@
+/*	$NetBSD: zynq_uart.c,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+
+/*
+ * Copyright (c) 2012  Genetec Corporation.  All rights reserved.
+ * Written by Hiroyuki Bessho, Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/*
+ * derived from sys/dev/ic/com.c
+ */
+
+/*-
+ * Copyright (c) 1998, 1999, 2004, 2008 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Charles M. Hannum.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)com.c	7.5 (Berkeley) 5/16/91
+ */
+
+/*
+ * driver for UART in Zynq-7000.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: zynq_uart.c,v 1.1 2019/06/11 13:01:48 skrll Exp $");
+
+#include "opt_soc.h"
+#include "opt_console.h"
+#include "opt_com.h"
+#include "opt_ddb.h"
+#include "opt_kgdb.h"
+#include "opt_ntp.h"
+
+/*
+ * Override cnmagic(9) macro before including <sys/systm.h>.
+ * We need to know if cn_check_magic triggered debugger, so set a flag.
+ * Callers of cn_check_magic must declare int cn_trapped = 0;
+ * XXX: this is *ugly*!
+ */
+#define	cn_trap()				\
+	do {					\
+		console_debugger();		\
+		cn_trapped = 1;			\
+	} while (/* CONSTCOND */ 0)
+
+#include <sys/param.h>
+
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <dev/cons.h>
+#include <sys/device.h>
+#include <sys/file.h>
+#include <sys/kauth.h>
+#include <sys/kernel.h>
+#include <sys/malloc.h>
+#include <sys/poll.h>
+#include <sys/proc.h>
+#include <sys/systm.h>
+#include <sys/tty.h>
+
+#ifdef RND_COM
+#include <sys/rndsource.h>
+#endif
+
+#include <arm/xilinx/zynq_uartreg.h>
+#include <arm/xilinx/zynq_uartvar.h>
+
+#ifndef	ZYNQUART_RING_SIZE
+#define	ZYNQUART_RING_SIZE	2048
+#endif
+
+#define UART_SIZE		0x00000048
+
+typedef struct zynquart_softc {
+	device_t	sc_dev;
+
+	struct zynquart_regs {
+		bus_space_tag_t		ur_iot;
+		bus_space_handle_t	ur_ioh;
+		bus_addr_t		ur_iobase;
+	} sc_regs;
+
+#define	sc_bt	sc_regs.ur_iot
+#define	sc_bh	sc_regs.ur_ioh
+
+	uint32_t	sc_intrspec_enb;
+	uint32_t	sc_cr;
+	uint32_t	sc_mcr;
+	uint32_t	sc_msr;
+
+	uint		sc_init_cnt;
+
+	bus_addr_t	sc_addr;
+	bus_size_t	sc_size;
+
+	u_char	sc_hwflags;
+/* Hardware flag masks */
+#define	ZYNQUART_HW_FLOW 	__BIT(0)
+#define	ZYNQUART_HW_DEV_OK	__BIT(1)
+#define	ZYNQUART_HW_CONSOLE	__BIT(2)
+#define	ZYNQUART_HW_KGDB 	__BIT(3)
+
+	bool	enabled;
+
+	u_char	sc_swflags;
+
+	u_char sc_rx_flags;
+#define	ZYNQUART_RX_TTY_BLOCKED  	__BIT(0)
+#define	ZYNQUART_RX_TTY_OVERFLOWED	__BIT(1)
+#define	ZYNQUART_RX_IBUF_BLOCKED 	__BIT(2)
+#define	ZYNQUART_RX_IBUF_OVERFLOWED	__BIT(3)
+#define	ZYNQUART_RX_ANY_BLOCK					\
+	(ZYNQUART_RX_TTY_BLOCKED|ZYNQUART_RX_TTY_OVERFLOWED| 	\
+	    ZYNQUART_RX_IBUF_BLOCKED|ZYNQUART_RX_IBUF_OVERFLOWED)
+
+	bool	sc_tx_busy, sc_tx_done, sc_tx_stopped;
+	bool	sc_rx_ready,sc_st_check;
+	u_short	sc_txfifo_len, sc_txfifo_thresh;
+
+	uint16_t	*sc_rbuf;
+	u_int		sc_rbuf_size;
+	u_int		sc_rbuf_in;
+	u_int		sc_rbuf_out;
+#define	ZYNQUART_RBUF_AVAIL(sc)					\
+	((sc->sc_rbuf_out <= sc->sc_rbuf_in) ?			\
+	(sc->sc_rbuf_in - sc->sc_rbuf_out) :			\
+	(sc->sc_rbuf_size - (sc->sc_rbuf_out - sc->sc_rbuf_in)))
+
+#define	ZYNQUART_RBUF_SPACE(sc)	\
+	((sc->sc_rbuf_in <= sc->sc_rbuf_out ?			    \
+	    sc->sc_rbuf_size - (sc->sc_rbuf_out - sc->sc_rbuf_in) : \
+	    sc->sc_rbuf_in - sc->sc_rbuf_out) - 1)
+/* increment ringbuffer pointer */
+#define	ZYNQUART_RBUF_INC(sc,v,i)	(((v) + (i))&((sc->sc_rbuf_size)-1))
+	u_int	sc_r_lowat;
+	u_int	sc_r_hiwat;
+
+	/* output chunk */
+ 	u_char *sc_tba;
+ 	u_int sc_tbc;
+	u_int sc_heldtbc;
+	/* pending parameter changes */
+	u_char	sc_pending;
+#define	ZYNQUART_PEND_PARAM	__BIT(0)
+#define	ZYNQUART_PEND_SPEED	__BIT(1)
+
+
+	struct callout sc_diag_callout;
+	kmutex_t sc_lock;
+	void *sc_ih;		/* interrupt handler */
+	void *sc_si;		/* soft interrupt */
+	struct tty		*sc_tty;
+
+	/* power management hooks */
+	int (*enable)(struct zynquart_softc *);
+	void (*disable)(struct zynquart_softc *);
+
+	struct {
+		ulong err;
+		ulong brk;
+		ulong prerr;
+		ulong frmerr;
+		ulong ovrrun;
+	}	sc_errors;
+
+	struct zynquart_baudrate_ratio {
+		uint16_t numerator;	/* UBIR */
+		uint16_t modulator;	/* UBMR */
+	} sc_ratio;
+
+} zynquart_softc_t;
+
+
+int	zynquartspeed(long, struct zynquart_baudrate_ratio *);
+int	zynquartparam(struct tty *, struct termios *);
+void	zynquartstart(struct tty *);
+int	zynquarthwiflow(struct tty *, int);
+
+void	zynquart_shutdown(struct zynquart_softc *);
+void	zynquart_loadchannelregs(struct zynquart_softc *);
+void	zynquart_hwiflow(struct zynquart_softc *);
+void	zynquart_break(struct zynquart_softc *, bool);
+void	zynquart_modem(struct zynquart_softc *, int);
+void	tiocm_to_zynquart(struct zynquart_softc *, u_long, int);
+int	zynquart_to_tiocm(struct zynquart_softc *);
+void	zynquart_iflush(struct zynquart_softc *);
+
+int	zynquart_common_getc(dev_t, struct zynquart_regs *);
+void	zynquart_common_putc(dev_t, struct zynquart_regs *, int);
+
+
+int	zynquart_init(struct zynquart_regs *, int, tcflag_t);
+
+int	zynquartcngetc(dev_t);
+void	zynquartcnputc(dev_t, int);
+
+static void zynquartintr_read(struct zynquart_softc *);
+static void zynquartintr_send(struct zynquart_softc *);
+
+static void zynquart_enable_debugport(struct zynquart_softc *);
+static void zynquart_disable_all_interrupts(struct zynquart_softc *);
+static void zynquart_control_rxint(struct zynquart_softc *, bool);
+static void zynquart_control_txint(struct zynquart_softc *, bool);
+
+static	uint32_t cflag_to_zynquart(tcflag_t, uint32_t);
+
+#define	integrate	static inline
+void 	zynquartsoft(void *);
+integrate void zynquart_rxsoft(struct zynquart_softc *, struct tty *);
+integrate void zynquart_txsoft(struct zynquart_softc *, struct tty *);
+integrate void zynquart_stsoft(struct zynquart_softc *, struct tty *);
+integrate void zynquart_schedrx(struct zynquart_softc *);
+void	zynquartdiag(void *);
+static void zynquart_load_speed(struct zynquart_softc *);
+static void zynquart_load_params(struct zynquart_softc *);
+integrate void zynquart_load_pendings(struct zynquart_softc *);
+
+
+extern struct cfdriver zynquart_cd;
+
+dev_type_open(zynquartopen);
+dev_type_close(zynquartclose);
+dev_type_read(zynquartread);
+dev_type_write(zynquartwrite);
+dev_type_ioctl(zynquartioctl);
+dev_type_stop(zynquartstop);
+dev_type_tty(zynquarttty);
+dev_type_poll(zynquartpoll);
+
+const struct cdevsw zynquart_cdevsw = {
+	.d_open = zynquartopen,
+	.d_close = zynquartclose,
+	.d_read = zynquartread,
+	.d_write = zynquartwrite,
+	.d_ioctl = zynquartioctl,
+	.d_stop = zynquartstop,
+	.d_tty = zynquarttty,
+	.d_poll = zynquartpoll,
+	.d_mmap = nommap,
+	.d_kqfilter = ttykqfilter,
+	.d_discard = nodiscard,
+	.d_flag = D_TTY
+};
+
+/*
+ * Make this an option variable one can patch.
+ * But be warned:  this must be a power of 2!
+ */
+u_int zynquart_rbuf_size = ZYNQUART_RING_SIZE;
+
+/* Stop input when 3/4 of the ring is full; restart when only 1/4 is full. */
+u_int zynquart_rbuf_hiwat = (ZYNQUART_RING_SIZE * 1) / 4;
+u_int zynquart_rbuf_lowat = (ZYNQUART_RING_SIZE * 3) / 4;
+
+static struct zynquart_regs zynquartconsregs;
+static int zynquartconsattached;
+static int zynquartconsrate;
+static tcflag_t zynquartconscflag;
+static struct cnm_state zynquart_cnm_state;
+
+u_int zynquart_freq;
+u_int zynquart_freqdiv;
+
+#ifdef KGDB
+#include <sys/kgdb.h>
+
+static struct zynquart_regs zynquart_kgdb_regs;
+static int zynquart_kgdb_attached;
+
+int	zynquart_kgdb_getc(void *);
+void	zynquart_kgdb_putc(void *, int);
+#endif /* KGDB */
+
+#define	ZYNQUART_UNIT_MASK	0x7ffff
+#define	ZYNQUART_DIALOUT_MASK	0x80000
+
+#define	ZYNQUART_UNIT(x)	(minor(x) & ZYNQUART_UNIT_MASK)
+#define	ZYNQUART_DIALOUT(x)	(minor(x) & ZYNQUART_DIALOUT_MASK)
+
+#define	ZYNQUART_ISALIVE(sc)	((sc)->enabled != 0 && \
+			 device_is_active((sc)->sc_dev))
+
+#define	BR	BUS_SPACE_BARRIER_READ
+#define	BW	BUS_SPACE_BARRIER_WRITE
+#define	ZYNQUART_BARRIER(r, f) \
+	bus_space_barrier((r)->ur_iot, (r)->ur_ioh, 0, UART_SIZE, (f))
+
+CFATTACH_DECL_NEW(zynquart, sizeof(struct zynquart_softc),
+    zynquart_match, zynquart_attach, NULL, NULL);
+
+void
+zynquart_attach_common(device_t parent, device_t self,
+    bus_space_tag_t iot, paddr_t iobase, size_t size, int flags)
+{
+	zynquart_softc_t *sc = device_private(self);
+	struct zynquart_regs *regsp = &sc->sc_regs;
+	struct tty *tp;
+	bus_space_handle_t ioh;
+
+	aprint_naive("\n");
+	aprint_normal("\n");
+
+	sc->sc_dev = self;
+
+	if (size <= 0)
+		size = UART_SIZE;
+
+	regsp->ur_iot = iot;
+	regsp->ur_iobase = iobase;
+
+	if (bus_space_map(iot, regsp->ur_iobase, size, 0, &ioh)) {
+		return;
+	}
+	regsp->ur_ioh = ioh;
+
+	callout_init(&sc->sc_diag_callout, 0);
+	mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_HIGH);
+
+	sc->sc_cr = bus_space_read_4(iot, ioh, UART_CONTROL);
+	sc->sc_cr |= CR_TXEN | CR_RXEN;
+	sc->sc_cr &= ~(CR_TXDIS | CR_RXDIS);
+	bus_space_write_4(iot, ioh, UART_CONTROL, sc->sc_cr);
+
+	/* Disable interrupts before configuring the device. */
+	zynquart_disable_all_interrupts(sc);
+
+	if (regsp->ur_iobase == zynquartconsregs.ur_iobase) {
+		zynquartconsattached = 1;
+
+		/* Make sure the console is always "hardwired". */
+		SET(sc->sc_hwflags, ZYNQUART_HW_CONSOLE);
+		SET(sc->sc_swflags, TIOCFLAG_SOFTCAR);
+	}
+
+	tp = tty_alloc();
+	tp->t_oproc = zynquartstart;
+	tp->t_param = zynquartparam;
+	tp->t_hwiflow = zynquarthwiflow;
+
+	sc->sc_tty = tp;
+	sc->sc_rbuf = malloc(sizeof (*sc->sc_rbuf) * zynquart_rbuf_size,
+	    M_DEVBUF, M_NOWAIT);
+	sc->sc_rbuf_size = zynquart_rbuf_size;
+	sc->sc_rbuf_in = sc->sc_rbuf_out = 0;
+	if (sc->sc_rbuf == NULL) {
+		aprint_error_dev(sc->sc_dev,
+		    "unable to allocate ring buffer\n");
+		return;
+	}
+
+	sc->sc_txfifo_len = 64;
+	sc->sc_txfifo_thresh = 32;
+
+	tty_attach(tp);
+
+	if (ISSET(sc->sc_hwflags, ZYNQUART_HW_CONSOLE)) {
+		int maj;
+
+		/* locate the major number */
+		maj = cdevsw_lookup_major(&zynquart_cdevsw);
+
+		if (maj != NODEVMAJOR) {
+			tp->t_dev = cn_tab->cn_dev = makedev(maj,
+			    device_unit(sc->sc_dev));
+
+			aprint_normal_dev(sc->sc_dev, "console\n");
+		}
+	}
+
+	/* reset receive time out */
+	bus_space_write_4(iot, ioh, UART_RCVR_TIMEOUT, 0);
+	bus_space_write_4(iot, ioh, UART_RCVR_FIFO_TRIGGER, 1);
+
+#ifdef KGDB
+	/*
+	 * Allow kgdb to "take over" this port.  If this is
+	 * not the console and is the kgdb device, it has
+	 * exclusive use.  If it's the console _and_ the
+	 * kgdb device, it doesn't.
+	 */
+	if (regsp->ur_iobase == zynquart_kgdb_regs.ur_iobase) {
+		if (!ISSET(sc->sc_hwflags, ZYNQUART_HW_CONSOLE)) {
+			zynquart_kgdb_attached = 1;
+
+			SET(sc->sc_hwflags, ZYNQUART_HW_KGDB);
+		}
+		aprint_normal_dev(sc->sc_dev, "kgdb\n");
+	}
+#endif
+
+	sc->sc_si = softint_establish(SOFTINT_SERIAL, zynquartsoft, sc);
+
+#ifdef RND_COM
+	rnd_attach_source(&sc->rnd_source, device_xname(sc->sc_dev),
+			  RND_TYPE_TTY, 0);
+#endif
+
+	/* if there are no enable/disable functions, assume the device
+	   is always enabled */
+	if (!sc->enable)
+		sc->enabled = 1;
+
+	zynquart_enable_debugport(sc);
+
+	SET(sc->sc_hwflags, ZYNQUART_HW_DEV_OK);
+}
+
+int
+zynquartspeed(long speed, struct zynquart_baudrate_ratio *ratio)
+{
+	return 0;
+}
+
+#ifdef ZYNQUART_DEBUG
+int	zynquart_debug = 0;
+
+void zynquartstatus(struct zynquart_softc *, const char *);
+void
+zynquartstatus(struct zynquart_softc *sc, const char *str)
+{
+	struct tty *tp = sc->sc_tty;
+
+	aprint_normal_dev(sc->sc_dev,
+	    "%s %cclocal  %cdcd %cts_carr_on %cdtr %ctx_stopped\n",
+	    str,
+	    ISSET(tp->t_cflag, CLOCAL) ? '+' : '-',
+	    ISSET(sc->sc_msr, MSR_DCD) ? '+' : '-',
+	    ISSET(tp->t_state, TS_CARR_ON) ? '+' : '-',
+	    ISSET(sc->sc_mcr, MCR_DTR) ? '+' : '-',
+	    sc->sc_tx_stopped ? '+' : '-');
+
+	aprint_normal_dev(sc->sc_dev,
+	    "%s %ccrtscts %ccts %cts_ttstop  %crts rx_flags=0x%x\n",
+	    str,
+	    ISSET(tp->t_cflag, CRTSCTS) ? '+' : '-',
+	    ISSET(sc->sc_msr, MSR_CTS) ? '+' : '-',
+	    ISSET(tp->t_state, TS_TTSTOP) ? '+' : '-',
+	    ISSET(sc->sc_mcr, MCR_RTS) ? '+' : '-',
+	    sc->sc_rx_flags);
+}
+#endif
+
+#if 0
+int
+zynquart_detach(device_t self, int flags)
+{
+	struct zynquart_softc *sc = device_private(self);
+	int maj, mn;
+
+        if (ISSET(sc->sc_hwflags, ZYNQUART_HW_CONSOLE))
+		return EBUSY;
+
+	/* locate the major number */
+	maj = cdevsw_lookup_major(&zynquart_cdevsw);
+
+	/* Nuke the vnodes for any open instances. */
+	mn = device_unit(self);
+	vdevgone(maj, mn, mn, VCHR);
+
+	mn |= ZYNQUART_DIALOUT_MASK;
+	vdevgone(maj, mn, mn, VCHR);
+
+	if (sc->sc_rbuf == NULL) {
+		/*
+		 * Ring buffer allocation failed in the zynquart_attach_subr,
+		 * only the tty is allocated, and nothing else.
+		 */
+		tty_free(sc->sc_tty);
+		return 0;
+	}
+
+	/* Free the receive buffer. */
+	free(sc->sc_rbuf, M_DEVBUF);
+
+	/* Detach and free the tty. */
+	tty_detach(sc->sc_tty);
+	tty_free(sc->sc_tty);
+
+	/* Unhook the soft interrupt handler. */
+	softint_disestablish(sc->sc_si);
+
+#ifdef RND_COM
+	/* Unhook the entropy source. */
+	rnd_detach_source(&sc->rnd_source);
+#endif
+	callout_destroy(&sc->sc_diag_callout);
+
+	/* Destroy the lock. */
+	mutex_destroy(&sc->sc_lock);
+
+	return (0);
+}
+#endif
+
+#ifdef notyet
+int
+zynquart_activate(device_t self, enum devact act)
+{
+	struct zynquart_softc *sc = device_private(self);
+	int rv = 0;
+
+	switch (act) {
+	case DVACT_ACTIVATE:
+		rv = EOPNOTSUPP;
+		break;
+
+	case DVACT_DEACTIVATE:
+		if (sc->sc_hwflags & (ZYNQUART_HW_CONSOLE|ZYNQUART_HW_KGDB)) {
+			rv = EBUSY;
+			break;
+		}
+
+		if (sc->disable != NULL && sc->enabled != 0) {
+			(*sc->disable)(sc);
+			sc->enabled = 0;
+		}
+		break;
+	}
+
+	return (rv);
+}
+#endif
+
+void
+zynquart_shutdown(struct zynquart_softc *sc)
+{
+	struct tty *tp = sc->sc_tty;
+
+	mutex_spin_enter(&sc->sc_lock);
+
+	/* If we were asserting flow control, then deassert it. */
+	SET(sc->sc_rx_flags, ZYNQUART_RX_IBUF_BLOCKED);
+	zynquart_hwiflow(sc);
+
+	/* Clear any break condition set with TIOCSBRK. */
+	zynquart_break(sc, false);
+
+	/*
+	 * Hang up if necessary.  Wait a bit, so the other side has time to
+	 * notice even if we immediately open the port again.
+	 * Avoid tsleeping above splhigh().
+	 */
+	if (ISSET(tp->t_cflag, HUPCL)) {
+		zynquart_modem(sc, 0);
+		mutex_spin_exit(&sc->sc_lock);
+		/* XXX will only timeout */
+		(void) kpause(ttclos, false, hz, NULL);
+		mutex_spin_enter(&sc->sc_lock);
+	}
+
+	/* Turn off interrupts. */
+	zynquart_disable_all_interrupts(sc);
+	/* re-enable recv interrupt for console or kgdb port */
+	zynquart_enable_debugport(sc);
+
+	mutex_spin_exit(&sc->sc_lock);
+
+#ifdef	notyet
+	if (sc->disable) {
+#ifdef DIAGNOSTIC
+		if (!sc->enabled)
+			panic("zynquart_shutdown: not enabled?");
+#endif
+		(*sc->disable)(sc);
+		sc->enabled = 0;
+	}
+#endif
+}
+
+int
+zynquartopen(dev_t dev, int flag, int mode, struct lwp *l)
+{
+	struct zynquart_softc *sc;
+	struct tty *tp;
+	int s;
+	int error;
+
+	sc = device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(dev));
+	if (sc == NULL || !ISSET(sc->sc_hwflags, ZYNQUART_HW_DEV_OK) ||
+		sc->sc_rbuf == NULL)
+		return (ENXIO);
+
+	if (!device_is_active(sc->sc_dev))
+		return (ENXIO);
+
+#ifdef KGDB
+	/*
+	 * If this is the kgdb port, no other use is permitted.
+	 */
+	if (ISSET(sc->sc_hwflags, ZYNQUART_HW_KGDB))
+		return (EBUSY);
+#endif
+
+	tp = sc->sc_tty;
+
+	if (kauth_authorize_device_tty(l->l_cred, KAUTH_DEVICE_TTY_OPEN, tp))
+		return (EBUSY);
+
+	s = spltty();
+
+	/*
+	 * Do the following iff this is a first open.
+	 */
+	if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
+		struct termios t;
+
+		tp->t_dev = dev;
+
+
+#ifdef notyet
+		if (sc->enable) {
+			if ((*sc->enable)(sc)) {
+				splx(s);
+				aprint_error_dev(sc->sc_dev,
+				    "device enable failed\n");
+				return (EIO);
+			}
+			sc->enabled = 1;
+		}
+#endif
+
+		mutex_spin_enter(&sc->sc_lock);
+
+		zynquart_disable_all_interrupts(sc);
+
+		/* Fetch the current modem control status, needed later. */
+
+#ifdef	ZYNQUART_PPS
+		/* Clear PPS capture state on first open. */
+		mutex_spin_enter(&timecounter_lock);
+		memset(&sc->sc_pps_state, 0, sizeof(sc->sc_pps_state));
+		sc->sc_pps_state.ppscap = PPS_CAPTUREASSERT | PPS_CAPTURECLEAR;
+		pps_init(&sc->sc_pps_state);
+		mutex_spin_exit(&timecounter_lock);
+#endif
+
+		mutex_spin_exit(&sc->sc_lock);
+
+		/*
+		 * Initialize the termios status to the defaults.  Add in the
+		 * sticky bits from TIOCSFLAGS.
+		 */
+		if (ISSET(sc->sc_hwflags, ZYNQUART_HW_CONSOLE)) {
+			t.c_ospeed = zynquartconsrate;
+			t.c_cflag = zynquartconscflag;
+		} else {
+			t.c_ospeed = TTYDEF_SPEED;
+			t.c_cflag = TTYDEF_CFLAG;
+		}
+		t.c_ispeed = t.c_ospeed;
+		if (ISSET(sc->sc_swflags, TIOCFLAG_CLOCAL))
+			SET(t.c_cflag, CLOCAL);
+		if (ISSET(sc->sc_swflags, TIOCFLAG_CRTSCTS))
+			SET(t.c_cflag, CRTSCTS);
+		if (ISSET(sc->sc_swflags, TIOCFLAG_MDMBUF))
+			SET(t.c_cflag, MDMBUF);
+		/* Make sure zynquartparam() will do something. */
+		tp->t_ospeed = 0;
+		(void) zynquartparam(tp, &t);
+		tp->t_iflag = TTYDEF_IFLAG;
+		tp->t_oflag = TTYDEF_OFLAG;
+		tp->t_lflag = TTYDEF_LFLAG;
+		ttychars(tp);
+		ttsetwater(tp);
+
+		mutex_spin_enter(&sc->sc_lock);
+
+		/*
+		 * Turn on DTR.  We must always do this, even if carrier is not
+		 * present, because otherwise we'd have to use TIOCSDTR
+		 * immediately after setting CLOCAL, which applications do not
+		 * expect.  We always assert DTR while the device is open
+		 * unless explicitly requested to deassert it.
+		 */
+		zynquart_modem(sc, 1);
+
+		/* Clear the input ring, and unblock. */
+		sc->sc_rbuf_in = sc->sc_rbuf_out = 0;
+		zynquart_iflush(sc);
+		CLR(sc->sc_rx_flags, ZYNQUART_RX_ANY_BLOCK);
+		zynquart_hwiflow(sc);
+
+		/* Turn on interrupts. */
+		zynquart_control_rxint(sc, true);
+
+#ifdef ZYNQUART_DEBUG
+		if (zynquart_debug)
+			zynquartstatus(sc, "zynquartopen  ");
+#endif
+
+		mutex_spin_exit(&sc->sc_lock);
+	}
+
+	splx(s);
+
+#if 0
+	error = ttyopen(tp, ZYNQUART_DIALOUT(dev), ISSET(flag, O_NONBLOCK));
+#else
+	error = ttyopen(tp, 1, ISSET(flag, O_NONBLOCK));
+#endif
+	if (error)
+		goto bad;
+
+	error = (*tp->t_linesw->l_open)(dev, tp);
+	if (error)
+		goto bad;
+
+	return (0);
+
+bad:
+	if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
+		/*
+		 * We failed to open the device, and nobody else had it opened.
+		 * Clean up the state as appropriate.
+		 */
+		zynquart_shutdown(sc);
+	}
+
+	return (error);
+}
+
+int
+zynquartclose(dev_t dev, int flag, int mode, struct lwp *l)
+{
+	struct zynquart_softc *sc =
+	    device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(dev));
+	struct tty *tp = sc->sc_tty;
+
+	/* XXX This is for cons.c. */
+	if (!ISSET(tp->t_state, TS_ISOPEN))
+		return (0);
+
+	(*tp->t_linesw->l_close)(tp, flag);
+	ttyclose(tp);
+
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return (0);
+
+	if (!ISSET(tp->t_state, TS_ISOPEN) && tp->t_wopen == 0) {
+		/*
+		 * Although we got a last close, the device may still be in
+		 * use; e.g. if this was the dialout node, and there are still
+		 * processes waiting for carrier on the non-dialout node.
+		 */
+		zynquart_shutdown(sc);
+	}
+
+	return (0);
+}
+
+int
+zynquartread(dev_t dev, struct uio *uio, int flag)
+{
+	struct zynquart_softc *sc =
+	    device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(dev));
+	struct tty *tp = sc->sc_tty;
+
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return (EIO);
+
+	return ((*tp->t_linesw->l_read)(tp, uio, flag));
+}
+
+int
+zynquartwrite(dev_t dev, struct uio *uio, int flag)
+{
+	struct zynquart_softc *sc =
+	    device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(dev));
+	struct tty *tp = sc->sc_tty;
+
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return (EIO);
+
+	return ((*tp->t_linesw->l_write)(tp, uio, flag));
+}
+
+int
+zynquartpoll(dev_t dev, int events, struct lwp *l)
+{
+	struct zynquart_softc *sc =
+	    device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(dev));
+	struct tty *tp = sc->sc_tty;
+
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return (POLLHUP);
+
+	return ((*tp->t_linesw->l_poll)(tp, events, l));
+}
+
+struct tty *
+zynquarttty(dev_t dev)
+{
+	struct zynquart_softc *sc =
+	    device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(dev));
+	struct tty *tp = sc->sc_tty;
+
+	return (tp);
+}
+
+int
+zynquartioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
+{
+	struct zynquart_softc *sc;
+	struct tty *tp;
+	int error;
+
+	sc = device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(dev));
+	if (sc == NULL)
+		return ENXIO;
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return (EIO);
+
+	tp = sc->sc_tty;
+
+	error = (*tp->t_linesw->l_ioctl)(tp, cmd, data, flag, l);
+	if (error != EPASSTHROUGH)
+		return (error);
+
+	error = ttioctl(tp, cmd, data, flag, l);
+	if (error != EPASSTHROUGH)
+		return (error);
+
+	error = 0;
+	switch (cmd) {
+	case TIOCSFLAGS:
+		error = kauth_authorize_device_tty(l->l_cred,
+		    KAUTH_DEVICE_TTY_PRIVSET, tp);
+		break;
+	default:
+		/* nothing */
+		break;
+	}
+	if (error) {
+		return error;
+	}
+
+	mutex_spin_enter(&sc->sc_lock);
+
+	switch (cmd) {
+	case TIOCSBRK:
+		zynquart_break(sc, true);
+		break;
+
+	case TIOCCBRK:
+		zynquart_break(sc, false);
+		break;
+
+	case TIOCSDTR:
+		zynquart_modem(sc, 1);
+		break;
+
+	case TIOCCDTR:
+		zynquart_modem(sc, 0);
+		break;
+
+	case TIOCGFLAGS:
+		*(int *)data = sc->sc_swflags;
+		break;
+
+	case TIOCSFLAGS:
+		sc->sc_swflags = *(int *)data;
+		break;
+
+	case TIOCMSET:
+	case TIOCMBIS:
+	case TIOCMBIC:
+		tiocm_to_zynquart(sc, cmd, *(int *)data);
+		break;
+
+	case TIOCMGET:
+		*(int *)data = zynquart_to_tiocm(sc);
+		break;
+
+#ifdef notyet
+	case PPS_IOC_CREATE:
+	case PPS_IOC_DESTROY:
+	case PPS_IOC_GETPARAMS:
+	case PPS_IOC_SETPARAMS:
+	case PPS_IOC_GETCAP:
+	case PPS_IOC_FETCH:
+#ifdef PPS_SYNC
+	case PPS_IOC_KCBIND:
+#endif
+		mutex_spin_enter(&timecounter_lock);
+		error = pps_ioctl(cmd, data, &sc->sc_pps_state);
+		mutex_spin_exit(&timecounter_lock);
+		break;
+
+	case TIOCDCDTIMESTAMP:	/* XXX old, overloaded  API used by xntpd v3 */
+		mutex_spin_enter(&timecounter_lock);
+#ifndef PPS_TRAILING_EDGE
+		TIMESPEC_TO_TIMEVAL((struct timeval *)data,
+		    &sc->sc_pps_state.ppsinfo.assert_timestamp);
+#else
+		TIMESPEC_TO_TIMEVAL((struct timeval *)data,
+		    &sc->sc_pps_state.ppsinfo.clear_timestamp);
+#endif
+		mutex_spin_exit(&timecounter_lock);
+		break;
+#endif
+
+	default:
+		error = EPASSTHROUGH;
+		break;
+	}
+
+	mutex_spin_exit(&sc->sc_lock);
+
+#ifdef ZYNQUART_DEBUG
+	if (zynquart_debug)
+		zynquartstatus(sc, "zynquartioctl ");
+#endif
+
+	return (error);
+}
+
+integrate void
+zynquart_schedrx(struct zynquart_softc *sc)
+{
+	sc->sc_rx_ready = 1;
+
+	/* Wake up the poller. */
+	softint_schedule(sc->sc_si);
+}
+
+void
+zynquart_break(struct zynquart_softc *sc, bool onoff)
+{
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+
+	if (onoff)
+		SET(sc->sc_cr, CR_STPBRK);
+	else
+		CLR(sc->sc_cr, CR_STPBRK);
+
+	bus_space_write_4(iot, ioh, UART_CONTROL, sc->sc_cr);
+}
+
+void
+zynquart_modem(struct zynquart_softc *sc, int onoff)
+{
+#ifdef notyet
+	if (sc->sc_mcr_dtr == 0)
+		return;
+
+	if (onoff)
+		SET(sc->sc_mcr, sc->sc_mcr_dtr);
+	else
+		CLR(sc->sc_mcr, sc->sc_mcr_dtr);
+
+	if (!sc->sc_heldchange) {
+		if (sc->sc_tx_busy) {
+			sc->sc_heldtbc = sc->sc_tbc;
+			sc->sc_tbc = 0;
+			sc->sc_heldchange = 1;
+		} else
+			zynquart_loadchannelregs(sc);
+	}
+#endif
+}
+
+void
+tiocm_to_zynquart(struct zynquart_softc *sc, u_long how, int ttybits)
+{
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+
+	u_char combits;
+
+	combits = 0;
+	if (ISSET(ttybits, TIOCM_DTR))
+		SET(combits, MODEMCR_DTR);
+	if (ISSET(ttybits, TIOCM_RTS))
+		SET(combits, MODEMCR_RTS);
+
+	switch (how) {
+	case TIOCMBIC:
+		CLR(sc->sc_mcr, combits);
+		break;
+
+	case TIOCMBIS:
+		SET(sc->sc_mcr, combits);
+		break;
+
+	case TIOCMSET:
+		CLR(sc->sc_mcr, MODEMCR_DTR | MODEMCR_RTS);
+		SET(sc->sc_mcr, combits);
+		break;
+	}
+
+	bus_space_write_4(iot, ioh, UART_MODEM_CTRL, sc->sc_mcr);
+}
+
+int
+zynquart_to_tiocm(struct zynquart_softc *sc)
+{
+#ifdef	notyet
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+#endif
+	uint32_t combits;
+	int ttybits = 0;
+
+	combits = sc->sc_mcr;
+	if (ISSET(combits, MODEMCR_DTR))
+		SET(ttybits, TIOCM_DTR);
+	if (ISSET(combits, MODEMCR_RTS))
+		SET(ttybits, TIOCM_RTS);
+
+	combits = sc->sc_msr;
+	if (ISSET(combits, MODEMSR_DCD))
+		SET(ttybits, TIOCM_CD);
+	if (ISSET(combits, MODEMSR_CTS))
+		SET(ttybits, TIOCM_CTS);
+	if (ISSET(combits, MODEMSR_DSR))
+		SET(ttybits, TIOCM_DSR);
+	if (ISSET(combits, MODEMSR_RI | MODEMSR_TERI))
+		SET(ttybits, TIOCM_RI);
+
+#ifdef	notyet
+	combits = bus_space_read_4(iot, ioh, UART_INTRPT_MASK);
+	if (ISSET(sc->sc_imr, IER_ERXRDY | IER_ETXRDY | IER_ERLS | IER_EMSC))
+		SET(ttybits, TIOCM_LE);
+#endif
+
+	return (ttybits);
+}
+
+static uint32_t
+cflag_to_zynquart(tcflag_t cflag, uint32_t oldval)
+{
+	uint32_t val = oldval;
+
+	CLR(val, MR_CHMODE | MR_NBSTOP | MR_PAR | MR_CHRL | MR_CLKS);
+
+	switch (cflag & CSIZE) {
+	case CS5:
+		/* not suppreted. use 7-bits */
+	case CS6:
+		SET(val, CHRL_6BIT);
+		break;
+	case CS7:
+		SET(val, CHRL_7BIT);
+		break;
+	case CS8:
+		SET(val, CHRL_8BIT);
+		break;
+	}
+
+	if (ISSET(cflag, PARENB)) {
+		/* odd parity */
+		if (!ISSET(cflag, PARODD))
+			SET(val, PAR_ODD);
+		else
+			SET(val, PAR_EVEN);
+	} else {
+		SET(val, PAR_NONE);
+	}
+
+	if (ISSET(cflag, CSTOPB))
+		SET(val, NBSTOP_2);
+
+	return val;
+}
+
+int
+zynquartparam(struct tty *tp, struct termios *t)
+{
+	struct zynquart_softc *sc =
+	    device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(tp->t_dev));
+	struct zynquart_baudrate_ratio ratio;
+	uint32_t mcr;
+	bool change_speed = tp->t_ospeed != t->c_ospeed;
+
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return (EIO);
+
+	/* Check requested parameters. */
+	if (t->c_ispeed && t->c_ispeed != t->c_ospeed)
+		return (EINVAL);
+
+	/*
+	 * For the console, always force CLOCAL and !HUPCL, so that the port
+	 * is always active.
+	 */
+	if (ISSET(sc->sc_swflags, TIOCFLAG_SOFTCAR) ||
+	    ISSET(sc->sc_hwflags, ZYNQUART_HW_CONSOLE)) {
+		SET(t->c_cflag, CLOCAL);
+		CLR(t->c_cflag, HUPCL);
+	}
+
+	/*
+	 * If there were no changes, don't do anything.  This avoids dropping
+	 * input and improves performance when all we did was frob things like
+	 * VMIN and VTIME.
+	 */
+	if ( !change_speed && tp->t_cflag == t->c_cflag)
+		return (0);
+
+	if (change_speed) {
+		/* calculate baudrate modulator value */
+		if (zynquartspeed(t->c_ospeed, &ratio) < 0)
+			return (EINVAL);
+		sc->sc_ratio = ratio;
+	}
+
+	mcr = cflag_to_zynquart(t->c_cflag, sc->sc_mcr);
+
+	mutex_spin_enter(&sc->sc_lock);
+
+#if 0
+	/* flow control stuff.  not yet */
+	/*
+	 * If we're not in a mode that assumes a connection is present, then
+	 * ignore carrier changes.
+	 */
+	if (ISSET(t->c_cflag, CLOCAL | MDMBUF))
+		sc->sc_msr_dcd = 0;
+	else
+		sc->sc_msr_dcd = MSR_DCD;
+	/*
+	 * Set the flow control pins depending on the current flow control
+	 * mode.
+	 */
+	if (ISSET(t->c_cflag, CRTSCTS)) {
+		sc->sc_mcr_dtr = MCR_DTR;
+		sc->sc_mcr_rts = MCR_RTS;
+		sc->sc_msr_cts = MSR_CTS;
+		sc->sc_efr = EFR_AUTORTS | EFR_AUTOCTS;
+	} else if (ISSET(t->c_cflag, MDMBUF)) {
+		/*
+		 * For DTR/DCD flow control, make sure we don't toggle DTR for
+		 * carrier detection.
+		 */
+		sc->sc_mcr_dtr = 0;
+		sc->sc_mcr_rts = MCR_DTR;
+		sc->sc_msr_cts = MSR_DCD;
+		sc->sc_efr = 0;
+	} else {
+		/*
+		 * If no flow control, then always set RTS.  This will make
+		 * the other side happy if it mistakenly thinks we're doing
+		 * RTS/CTS flow control.
+		 */
+		sc->sc_mcr_dtr = MCR_DTR | MCR_RTS;
+		sc->sc_mcr_rts = 0;
+		sc->sc_msr_cts = 0;
+		sc->sc_efr = 0;
+		if (ISSET(sc->sc_mcr, MCR_DTR))
+			SET(sc->sc_mcr, MCR_RTS);
+		else
+			CLR(sc->sc_mcr, MCR_RTS);
+	}
+	sc->sc_msr_mask = sc->sc_msr_cts | sc->sc_msr_dcd;
+#endif
+
+	/* And copy to tty. */
+	tp->t_ispeed = t->c_ospeed;
+	tp->t_ospeed = t->c_ospeed;
+	tp->t_cflag = t->c_cflag;
+
+	if (!change_speed && mcr == sc->sc_mcr) {
+		/* noop */
+	} else if (!sc->sc_pending && !sc->sc_tx_busy) {
+		if (mcr != sc->sc_mcr) {
+			sc->sc_mcr = mcr;
+			zynquart_load_params(sc);
+		}
+		if (change_speed)
+			zynquart_load_speed(sc);
+	} else {
+		if (!sc->sc_pending) {
+			sc->sc_heldtbc = sc->sc_tbc;
+			sc->sc_tbc = 0;
+		}
+		sc->sc_pending |=
+		    (mcr == sc->sc_mcr ? 0 : ZYNQUART_PEND_PARAM) |
+		    (change_speed ? 0 : ZYNQUART_PEND_SPEED);
+		sc->sc_mcr = mcr;
+	}
+
+	if (!ISSET(t->c_cflag, CHWFLOW)) {
+		/* Disable the high water mark. */
+		sc->sc_r_hiwat = 0;
+		sc->sc_r_lowat = 0;
+		if (ISSET(sc->sc_rx_flags, ZYNQUART_RX_TTY_OVERFLOWED)) {
+			CLR(sc->sc_rx_flags, ZYNQUART_RX_TTY_OVERFLOWED);
+			zynquart_schedrx(sc);
+		}
+		if (ISSET(sc->sc_rx_flags,
+			ZYNQUART_RX_TTY_BLOCKED|ZYNQUART_RX_IBUF_BLOCKED)) {
+			CLR(sc->sc_rx_flags,
+			    ZYNQUART_RX_TTY_BLOCKED|ZYNQUART_RX_IBUF_BLOCKED);
+			zynquart_hwiflow(sc);
+		}
+	} else {
+		sc->sc_r_hiwat = zynquart_rbuf_hiwat;
+		sc->sc_r_lowat = zynquart_rbuf_lowat;
+	}
+
+	mutex_spin_exit(&sc->sc_lock);
+
+	/*
+	 * Update the tty layer's idea of the carrier bit, in case we changed
+	 * CLOCAL or MDMBUF.  We don't hang up here; we only do that by
+	 * explicit request.
+	 */
+	(void) (*tp->t_linesw->l_modem)(tp, ISSET(sc->sc_msr, MODEMSR_DCD));
+
+#ifdef ZYNQUART_DEBUG
+	if (zynquart_debug)
+		zynquartstatus(sc, "zynquartparam ");
+#endif
+
+	if (!ISSET(t->c_cflag, CHWFLOW)) {
+		if (sc->sc_tx_stopped) {
+			sc->sc_tx_stopped = 0;
+			zynquartstart(tp);
+		}
+	}
+
+	return (0);
+}
+
+void
+zynquart_iflush(struct zynquart_softc *sc)
+{
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+#ifdef DIAGNOSTIC
+	uint32_t reg = 0xffff;
+#endif
+	int timo;
+
+	timo = 50000;
+	/* flush any pending I/O */
+	while (!ISSET(bus_space_read_4(iot, ioh, UART_CHANNEL_STS), STS_REMPTY) &&
+	    --timo)
+#ifdef DIAGNOSTIC
+		reg =
+#else
+		    (void)
+#endif
+		    bus_space_read_4(iot, ioh, UART_TX_RX_FIFO);
+
+#ifdef DIAGNOSTIC
+	if (!timo)
+		aprint_error_dev(sc->sc_dev, "zynquart_iflush timeout %02x\n", reg);
+#endif
+}
+
+int
+zynquarthwiflow(struct tty *tp, int block)
+{
+	struct zynquart_softc *sc =
+	    device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(tp->t_dev));
+
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return (0);
+
+#ifdef notyet
+	if (sc->sc_mcr_rts == 0)
+		return (0);
+#endif
+
+	mutex_spin_enter(&sc->sc_lock);
+
+	if (block) {
+		if (!ISSET(sc->sc_rx_flags, ZYNQUART_RX_TTY_BLOCKED)) {
+			SET(sc->sc_rx_flags, ZYNQUART_RX_TTY_BLOCKED);
+			zynquart_hwiflow(sc);
+		}
+	} else {
+		if (ISSET(sc->sc_rx_flags, ZYNQUART_RX_TTY_OVERFLOWED)) {
+			CLR(sc->sc_rx_flags, ZYNQUART_RX_TTY_OVERFLOWED);
+			zynquart_schedrx(sc);
+		}
+		if (ISSET(sc->sc_rx_flags, ZYNQUART_RX_TTY_BLOCKED)) {
+			CLR(sc->sc_rx_flags, ZYNQUART_RX_TTY_BLOCKED);
+			zynquart_hwiflow(sc);
+		}
+	}
+
+	mutex_spin_exit(&sc->sc_lock);
+	return (1);
+}
+
+/*
+ * (un)block input via hw flowcontrol
+ */
+void
+zynquart_hwiflow(struct zynquart_softc *sc)
+{
+#ifdef notyet
+	struct zynquart_regs *regsp= &sc->sc_regs;
+
+	if (sc->sc_mcr_rts == 0)
+		return;
+
+	if (ISSET(sc->sc_rx_flags, RX_ANY_BLOCK)) {
+		CLR(sc->sc_mcr, sc->sc_mcr_rts);
+		CLR(sc->sc_mcr_active, sc->sc_mcr_rts);
+	} else {
+		SET(sc->sc_mcr, sc->sc_mcr_rts);
+		SET(sc->sc_mcr_active, sc->sc_mcr_rts);
+	}
+	UR_WRITE_1(regsp, ZYNQUART_REG_MCR, sc->sc_mcr_active);
+#endif
+}
+
+
+void
+zynquartstart(struct tty *tp)
+{
+	struct zynquart_softc *sc =
+	    device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(tp->t_dev));
+	int s;
+	u_char *tba;
+	int tbc;
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return;
+
+	s = spltty();
+	if (ISSET(tp->t_state, TS_BUSY | TS_TIMEOUT | TS_TTSTOP))
+		goto out;
+	if (sc->sc_tx_stopped)
+		goto out;
+	if (!ttypull(tp))
+		goto out;
+
+	/* Grab the first contiguous region of buffer space. */
+	tba = tp->t_outq.c_cf;
+	tbc = ndqb(&tp->t_outq, 0);
+
+	mutex_spin_enter(&sc->sc_lock);
+
+	sc->sc_tba = tba;
+	sc->sc_tbc = tbc;
+
+	SET(tp->t_state, TS_BUSY);
+	sc->sc_tx_busy = 1;
+
+	while (sc->sc_tbc > 0 &&
+	    !(bus_space_read_4(iot, ioh, UART_CHANNEL_STS) & STS_TFUL)) {
+		bus_space_write_4(iot, ioh, UART_TX_RX_FIFO, *sc->sc_tba);
+		sc->sc_tbc--;
+		sc->sc_tba++;
+	}
+
+	/* Enable transmit completion interrupts */
+	zynquart_control_txint(sc, true);
+
+	mutex_spin_exit(&sc->sc_lock);
+out:
+	splx(s);
+	return;
+}
+
+/*
+ * Stop output on a line.
+ */
+void
+zynquartstop(struct tty *tp, int flag)
+{
+	struct zynquart_softc *sc =
+	    device_lookup_private(&zynquart_cd, ZYNQUART_UNIT(tp->t_dev));
+
+	mutex_spin_enter(&sc->sc_lock);
+	if (ISSET(tp->t_state, TS_BUSY)) {
+		/* Stop transmitting at the next chunk. */
+		sc->sc_tbc = 0;
+		sc->sc_heldtbc = 0;
+		if (!ISSET(tp->t_state, TS_TTSTOP))
+			SET(tp->t_state, TS_FLUSH);
+	}
+	mutex_spin_exit(&sc->sc_lock);
+}
+
+void
+zynquartdiag(void *arg)
+{
+#ifdef notyet
+	struct zynquart_softc *sc = arg;
+	int overflows, floods;
+
+	mutex_spin_enter(&sc->sc_lock);
+	overflows = sc->sc_overflows;
+	sc->sc_overflows = 0;
+	floods = sc->sc_floods;
+	sc->sc_floods = 0;
+	sc->sc_errors = 0;
+	mutex_spin_exit(&sc->sc_lock);
+
+	log(LOG_WARNING, "%s: %d silo overflow%s, %d ibuf flood%s\n",
+	    device_xname(sc->sc_dev),
+	    overflows, overflows == 1 ? "" : "s",
+	    floods, floods == 1 ? "" : "s");
+#endif
+}
+
+integrate void
+zynquart_rxsoft(struct zynquart_softc *sc, struct tty *tp)
+{
+	int (*rint)(int, struct tty *) = tp->t_linesw->l_rint;
+	u_int cc, scc, outp;
+	uint16_t data;
+	u_int code;
+
+	scc = cc = ZYNQUART_RBUF_AVAIL(sc);
+
+#if 0
+	if (cc == zynquart_rbuf_size-1) {
+		sc->sc_floods++;
+		if (sc->sc_errors++ == 0)
+			callout_reset(&sc->sc_diag_callout, 60 * hz,
+			    zynquartdiag, sc);
+	}
+#endif
+
+	/* If not yet open, drop the entire buffer content here */
+	if (!ISSET(tp->t_state, TS_ISOPEN)) {
+		sc->sc_rbuf_out = sc->sc_rbuf_in;
+		cc = 0;
+	}
+
+	outp = sc->sc_rbuf_out;
+
+#define	ERRBITS (INT_PARE|INT_FRAME|INT_ROVR)
+
+	while (cc) {
+	        data = sc->sc_rbuf[outp];
+		code = data & 0xff;
+		if (ISSET(__SHIFTOUT(data, ERROR_BITS), ERRBITS)) {
+			if (sc->sc_errors.err == 0)
+				callout_reset(&sc->sc_diag_callout,
+				    60 * hz, zynquartdiag, sc);
+			if (ISSET(__SHIFTOUT(data, ERROR_BITS), INT_ROVR))
+				sc->sc_errors.ovrrun++;
+			if (ISSET(__SHIFTOUT(data, ERROR_BITS), INT_FRAME)) {
+				sc->sc_errors.frmerr++;
+				SET(code, TTY_FE);
+			}
+			if (ISSET(__SHIFTOUT(data, ERROR_BITS), INT_PARE)) {
+				sc->sc_errors.prerr++;
+				SET(code, TTY_PE);
+			}
+		}
+		if ((*rint)(code, tp) == -1) {
+			/*
+			 * The line discipline's buffer is out of space.
+			 */
+			if (!ISSET(sc->sc_rx_flags, ZYNQUART_RX_TTY_BLOCKED)) {
+				/*
+				 * We're either not using flow control, or the
+				 * line discipline didn't tell us to block for
+				 * some reason.  Either way, we have no way to
+				 * know when there's more space available, so
+				 * just drop the rest of the data.
+				 */
+				sc->sc_rbuf_out = sc->sc_rbuf_in;
+				cc = 0;
+			} else {
+				/*
+				 * Don't schedule any more receive processing
+				 * until the line discipline tells us there's
+				 * space available (through zynquarthwiflow()).
+				 * Leave the rest of the data in the input
+				 * buffer.
+				 */
+				SET(sc->sc_rx_flags, ZYNQUART_RX_TTY_OVERFLOWED);
+			}
+			break;
+		}
+		outp = ZYNQUART_RBUF_INC(sc, outp, 1);
+		cc--;
+	}
+
+	if (cc != scc) {
+		sc->sc_rbuf_out = outp;
+		mutex_spin_enter(&sc->sc_lock);
+
+		cc = ZYNQUART_RBUF_SPACE(sc);
+
+		/* Buffers should be ok again, release possible block. */
+		if (cc >= sc->sc_r_lowat) {
+			if (ISSET(sc->sc_rx_flags, ZYNQUART_RX_IBUF_OVERFLOWED)) {
+				CLR(sc->sc_rx_flags, ZYNQUART_RX_IBUF_OVERFLOWED);
+				zynquart_control_rxint(sc, true);
+			}
+			if (ISSET(sc->sc_rx_flags, ZYNQUART_RX_IBUF_BLOCKED)) {
+				CLR(sc->sc_rx_flags, ZYNQUART_RX_IBUF_BLOCKED);
+				zynquart_hwiflow(sc);
+			}
+		}
+		mutex_spin_exit(&sc->sc_lock);
+	}
+}
+
+integrate void
+zynquart_txsoft(struct zynquart_softc *sc, struct tty *tp)
+{
+
+	CLR(tp->t_state, TS_BUSY);
+	if (ISSET(tp->t_state, TS_FLUSH))
+		CLR(tp->t_state, TS_FLUSH);
+	else
+		ndflush(&tp->t_outq, (int)(sc->sc_tba - tp->t_outq.c_cf));
+	(*tp->t_linesw->l_start)(tp);
+}
+
+integrate void
+zynquart_stsoft(struct zynquart_softc *sc, struct tty *tp)
+{
+#ifdef notyet
+	u_char msr, delta;
+
+	mutex_spin_enter(&sc->sc_lock);
+	msr = sc->sc_msr;
+	delta = sc->sc_msr_delta;
+	sc->sc_msr_delta = 0;
+	mutex_spin_exit(&sc->sc_lock);
+
+	if (ISSET(delta, sc->sc_msr_dcd)) {
+		/*
+		 * Inform the tty layer that carrier detect changed.
+		 */
+		(void) (*tp->t_linesw->l_modem)(tp, ISSET(msr, MSR_DCD));
+	}
+
+	if (ISSET(delta, sc->sc_msr_cts)) {
+		/* Block or unblock output according to flow control. */
+		if (ISSET(msr, sc->sc_msr_cts)) {
+			sc->sc_tx_stopped = 0;
+			(*tp->t_linesw->l_start)(tp);
+		} else {
+			sc->sc_tx_stopped = 1;
+		}
+	}
+
+#endif
+#ifdef ZYNQUART_DEBUG
+	if (zynquart_debug)
+		zynquartstatus(sc, "zynquart_stsoft");
+#endif
+}
+
+void
+zynquartsoft(void *arg)
+{
+	struct zynquart_softc *sc = arg;
+	struct tty *tp;
+
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return;
+
+	tp = sc->sc_tty;
+
+	if (sc->sc_rx_ready) {
+		sc->sc_rx_ready = 0;
+		zynquart_rxsoft(sc, tp);
+	}
+
+	if (sc->sc_st_check) {
+		sc->sc_st_check = 0;
+		zynquart_stsoft(sc, tp);
+	}
+
+	if (sc->sc_tx_done) {
+		sc->sc_tx_done = 0;
+		zynquart_txsoft(sc, tp);
+	}
+}
+
+int
+zynquartintr(void *arg)
+{
+	struct zynquart_softc *sc = arg;
+	uint32_t sts;
+	uint32_t int_sts;
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+
+	if (ZYNQUART_ISALIVE(sc) == 0)
+		return (0);
+
+	mutex_spin_enter(&sc->sc_lock);
+
+	int_sts = bus_space_read_4(iot, ioh, UART_CHNL_INT_STS);
+	do {
+		sts = bus_space_read_4(iot, ioh, UART_CHANNEL_STS);
+		if (!(sts & STS_REMPTY))
+			zynquartintr_read(sc);
+	} while (!(sts & STS_REMPTY));
+
+	if (sts & STS_TEMPTY)
+		zynquartintr_send(sc);
+
+	bus_space_write_4(iot, ioh, UART_CHNL_INT_STS, int_sts);
+
+	mutex_spin_exit(&sc->sc_lock);
+
+	/* Wake up the poller. */
+	softint_schedule(sc->sc_si);
+
+#ifdef RND_COM
+	rnd_add_uint32(&sc->rnd_source, iir | lsr);
+#endif
+
+	return (1);
+}
+
+
+/*
+ * called when there is least one character in rxfifo
+ *
+ */
+
+static void
+zynquartintr_read(struct zynquart_softc *sc)
+{
+	int cc;
+	uint16_t rd;
+	uint32_t sts;
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+
+	cc = ZYNQUART_RBUF_SPACE(sc);
+
+	/* clear aging timer interrupt */
+	bus_space_write_4(iot, ioh, UART_CHNL_INT_STS, INT_TIMEOUT);
+
+	while (cc > 0) {
+		int cn_trapped = 0;
+
+		sc->sc_rbuf[sc->sc_rbuf_in] = rd =
+		    bus_space_read_4(iot, ioh, UART_TX_RX_FIFO);
+
+		cn_check_magic(sc->sc_tty->t_dev,
+		    rd & 0xff, zynquart_cnm_state);
+
+		if (!cn_trapped) {
+			sc->sc_rbuf_in = ZYNQUART_RBUF_INC(sc, sc->sc_rbuf_in, 1);
+			cc--;
+		}
+
+		sts = bus_space_read_4(iot, ioh, UART_CHANNEL_STS);
+		if (sts & STS_REMPTY)
+			break;
+	}
+
+	/*
+	 * Current string of incoming characters ended because
+	 * no more data was available or we ran out of space.
+	 * Schedule a receive event if any data was received.
+	 * If we're out of space, turn off receive interrupts.
+	 */
+	if (!ISSET(sc->sc_rx_flags, ZYNQUART_RX_TTY_OVERFLOWED))
+		sc->sc_rx_ready = 1;
+	/*
+	 * See if we are in danger of overflowing a buffer. If
+	 * so, use hardware flow control to ease the pressure.
+	 */
+	if (!ISSET(sc->sc_rx_flags, ZYNQUART_RX_IBUF_BLOCKED) &&
+	    cc < sc->sc_r_hiwat) {
+		sc->sc_rx_flags |= ZYNQUART_RX_IBUF_BLOCKED;
+		zynquart_hwiflow(sc);
+	}
+
+	/*
+	 * If we're out of space, disable receive interrupts
+	 * until the queue has drained a bit.
+	 */
+	if (!cc) {
+		sc->sc_rx_flags |= ZYNQUART_RX_IBUF_OVERFLOWED;
+		zynquart_control_rxint(sc, false);
+	}
+}
+
+void
+zynquartintr_send(struct zynquart_softc *sc)
+{
+	uint32_t sts;
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+
+	sts = bus_space_read_4(iot, ioh, UART_CHANNEL_STS);
+
+	if (sc->sc_pending) {
+		if (sts & STS_TEMPTY) {
+			zynquart_load_pendings(sc);
+			sc->sc_tbc = sc->sc_heldtbc;
+			sc->sc_heldtbc = 0;
+		} else {
+			/* wait for TX fifo empty */
+			zynquart_control_txint(sc, true);
+			return;
+		}
+	}
+
+	while (sc->sc_tbc > 0 &&
+	    !(bus_space_read_4(iot, ioh, UART_CHANNEL_STS) & STS_TFUL)) {
+		bus_space_write_4(iot, ioh, UART_TX_RX_FIFO, *sc->sc_tba);
+		sc->sc_tbc--;
+		sc->sc_tba++;
+	}
+
+	if (sc->sc_tbc > 0)
+		zynquart_control_txint(sc, true);
+	else {
+		/* no more chars to send.
+		   we don't need tx interrupt any more. */
+		zynquart_control_txint(sc, false);
+		if (sc->sc_tx_busy) {
+			sc->sc_tx_busy = 0;
+			sc->sc_tx_done = 1;
+		}
+	}
+}
+
+static void
+zynquart_disable_all_interrupts(struct zynquart_softc *sc)
+{
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+
+	bus_space_write_4(iot, ioh, UART_INTRPT_DIS, 0xffffffff);
+}
+
+static void
+zynquart_control_rxint(struct zynquart_softc *sc, bool enable)
+{
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+	uint32_t mask = INT_TIMEOUT | INT_PARE | INT_FRAME | INT_ROVR | INT_RFUL | INT_RTRIG;
+	uint32_t sts;
+
+	/* clear */
+	sts = bus_space_read_4(iot, ioh, UART_CHNL_INT_STS);
+	bus_space_write_4(iot, ioh, UART_CHNL_INT_STS, sts);
+
+	if (enable)
+		bus_space_write_4(iot, ioh, UART_INTRPT_EN, mask);
+	else
+		bus_space_write_4(iot, ioh, UART_INTRPT_DIS, mask);
+}
+
+static void
+zynquart_control_txint(struct zynquart_softc *sc, bool enable)
+{
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+	uint32_t mask = INT_TEMPTY;
+
+	if (enable)
+		bus_space_write_4(iot, ioh, UART_INTRPT_EN, mask);
+	else
+		bus_space_write_4(iot, ioh, UART_INTRPT_DIS, mask);
+}
+
+
+static void
+zynquart_load_params(struct zynquart_softc *sc)
+{
+	bus_space_tag_t iot = sc->sc_regs.ur_iot;
+	bus_space_handle_t ioh = sc->sc_regs.ur_ioh;
+
+	bus_space_write_4(iot, ioh, UART_MODE, sc->sc_mcr);
+}
+
+static void
+zynquart_load_speed(struct zynquart_softc *sc)
+{
+	/* bus_space_tag_t iot = sc->sc_regs.ur_iot; */
+	/* bus_space_handle_t ioh = sc->sc_regs.ur_ioh; */
+
+	/* XXX */
+}
+
+
+static void
+zynquart_load_pendings(struct zynquart_softc *sc)
+{
+	if (sc->sc_pending & ZYNQUART_PEND_PARAM)
+		zynquart_load_params(sc);
+	if (sc->sc_pending & ZYNQUART_PEND_SPEED)
+		zynquart_load_speed(sc);
+	sc->sc_pending = 0;
+}
+
+/*
+ * The following functions are polled getc and putc routines, shared
+ * by the console and kgdb glue.
+ *
+ * The read-ahead code is so that you can detect pending in-band
+ * cn_magic in polled mode while doing output rather than having to
+ * wait until the kernel decides it needs input.
+ */
+
+#define	READAHEAD_RING_LEN	16
+static int zynquart_readahead[READAHEAD_RING_LEN];
+static int zynquart_readahead_in = 0;
+static int zynquart_readahead_out = 0;
+#define	READAHEAD_IS_EMPTY()	(zynquart_readahead_in==zynquart_readahead_out)
+#define	READAHEAD_IS_FULL()	\
+	(((zynquart_readahead_in+1) & (READAHEAD_RING_LEN-1)) ==zynquart_readahead_out)
+
+int
+zynquart_common_getc(dev_t dev, struct zynquart_regs *regsp)
+{
+	int s = splserial();
+	u_char c;
+	bus_space_tag_t iot = regsp->ur_iot;
+	bus_space_handle_t ioh = regsp->ur_ioh;
+	uint32_t sts;
+
+	/* got a character from reading things earlier */
+	if (zynquart_readahead_in != zynquart_readahead_out) {
+
+		c = zynquart_readahead[zynquart_readahead_out];
+		zynquart_readahead_out = (zynquart_readahead_out + 1) &
+		    (READAHEAD_RING_LEN-1);
+		splx(s);
+		return (c);
+	}
+
+	/* block until a character becomes available */
+	while ((sts = bus_space_read_4(iot, ioh, UART_CHANNEL_STS)) & STS_REMPTY)
+		;
+
+	c = 0xff & bus_space_read_4(iot, ioh, UART_TX_RX_FIFO);
+
+	{
+		int __attribute__((__unused__))cn_trapped = 0; /* unused */
+#ifdef DDB
+		extern int db_active;
+		if (!db_active)
+#endif
+			cn_check_magic(dev, c, zynquart_cnm_state);
+	}
+	splx(s);
+	return (c);
+}
+
+void
+zynquart_common_putc(dev_t dev, struct zynquart_regs *regsp, int c)
+{
+	int s = splserial();
+	int cin, timo;
+	bus_space_tag_t iot = regsp->ur_iot;
+	bus_space_handle_t ioh = regsp->ur_ioh;
+
+	if (!READAHEAD_IS_FULL() &&
+	    !(bus_space_read_4(iot, ioh, UART_CHANNEL_STS) & STS_REMPTY)) {
+
+		int __attribute__((__unused__))cn_trapped = 0;
+		cin = bus_space_read_4(iot, ioh, UART_TX_RX_FIFO);
+		cn_check_magic(dev, cin & 0xff, zynquart_cnm_state);
+		zynquart_readahead_in = (zynquart_readahead_in + 1) &
+		    (READAHEAD_RING_LEN-1);
+	}
+
+	/* wait for any pending transmission to finish */
+	timo = 150000;
+	do {
+		if (!(bus_space_read_4(iot, ioh, UART_CHANNEL_STS) & STS_TFUL)) {
+			bus_space_write_4(iot, ioh, UART_TX_RX_FIFO, c);
+			break;
+		}
+	} while(--timo > 0);
+
+	ZYNQUART_BARRIER(regsp, BR | BW);
+
+	splx(s);
+}
+
+/*
+ * Initialize UART for use as console or KGDB line.
+ */
+int
+zynquart_init(struct zynquart_regs *regsp, int rate, tcflag_t cflag)
+{
+	struct zynquart_baudrate_ratio ratio;
+
+	if (bus_space_map(regsp->ur_iot, regsp->ur_iobase, UART_SIZE, 0,
+		&regsp->ur_ioh))
+		return ENOMEM; /* ??? */
+
+	if (zynquartspeed(rate, &ratio) < 0)
+		return EINVAL;
+
+	/* clear status registers */
+	bus_space_write_4(regsp->ur_iot, regsp->ur_ioh, UART_CHNL_INT_STS, 0xffff);
+	bus_space_write_4(regsp->ur_iot, regsp->ur_ioh, UART_CHANNEL_STS, 0xffff);
+
+	return (0);
+}
+
+
+
+/*
+ * Following are all routines needed for UART to act as console
+ */
+struct consdev zynquartcons = {
+	.cn_getc = zynquartcngetc,
+	.cn_putc = zynquartcnputc,
+	.cn_pollc = nullcnpollc
+};
+
+
+int
+zynquart_cons_attach(bus_space_tag_t iot, paddr_t iobase, u_int rate,
+		    tcflag_t cflag)
+{
+	struct zynquart_regs regs;
+	int res;
+
+	regs.ur_iot = iot;
+	regs.ur_iobase = iobase;
+
+	res = zynquart_init(&regs, rate, cflag);
+	if (res)
+		return (res);
+
+	cn_tab = &zynquartcons;
+	cn_init_magic(&zynquart_cnm_state);
+	cn_set_magic("\047\001"); /* default magic is BREAK */
+
+	zynquartconsrate = rate;
+	zynquartconscflag = cflag;
+
+	zynquartconsregs = regs;
+
+	return 0;
+}
+
+int
+zynquartcngetc(dev_t dev)
+{
+	return (zynquart_common_getc(dev, &zynquartconsregs));
+}
+
+/*
+ * Console kernel output character routine.
+ */
+void
+zynquartcnputc(dev_t dev, int c)
+{
+	zynquart_common_putc(dev, &zynquartconsregs, c);
+}
+
+#ifdef KGDB
+int
+zynquart_kgdb_attach(bus_space_tag_t iot, paddr_t iobase, u_int rate,
+    tcflag_t cflag)
+{
+	int res;
+
+	if (iot == zynquartconsregs.ur_iot &&
+	    iobase == zynquartconsregs.ur_iobase) {
+#if !defined(DDB)
+		return (EBUSY); /* cannot share with console */
+#else
+		zynquart_kgdb_regs.ur_iot = iot;
+		zynquart_kgdb_regs.ur_ioh = zynquartconsregs.ur_ioh;
+		zynquart_kgdb_regs.ur_iobase = iobase;
+#endif
+	} else {
+		zynquart_kgdb_regs.ur_iot = iot;
+		zynquart_kgdb_regs.ur_iobase = iobase;
+
+		res = zynquart_init(&zynquart_kgdb_regs, rate, cflag);
+		if (res)
+			return (res);
+
+		/*
+		 * XXXfvdl this shouldn't be needed, but the cn_magic goo
+		 * expects this to be initialized
+		 */
+		cn_init_magic(&zynquart_cnm_state);
+		cn_set_magic("\047\001");
+	}
+
+	kgdb_attach(zynquart_kgdb_getc, zynquart_kgdb_putc, &zynquart_kgdb_regs);
+	kgdb_dev = 123; /* unneeded, only to satisfy some tests */
+
+	return (0);
+}
+
+/* ARGSUSED */
+int
+zynquart_kgdb_getc(void *arg)
+{
+	struct zynquart_regs *regs = arg;
+
+	return (zynquart_common_getc(NODEV, regs));
+}
+
+/* ARGSUSED */
+void
+zynquart_kgdb_putc(void *arg, int c)
+{
+	struct zynquart_regs *regs = arg;
+
+	zynquart_common_putc(NODEV, regs, c);
+}
+#endif /* KGDB */
+
+/* helper function to identify the zynquart ports used by
+ console or KGDB (and not yet autoconf attached) */
+int
+zynquart_is_console(bus_space_tag_t iot, bus_addr_t iobase, bus_space_handle_t *ioh)
+{
+	bus_space_handle_t help;
+
+	if (!zynquartconsattached &&
+	    iot == zynquartconsregs.ur_iot && iobase == zynquartconsregs.ur_iobase)
+		help = zynquartconsregs.ur_ioh;
+#ifdef KGDB
+	else if (!zynquart_kgdb_attached &&
+	    iot == zynquart_kgdb_regs.ur_iot && iobase == zynquart_kgdb_regs.ur_iobase)
+		help = zynquart_kgdb_regs.ur_ioh;
+#endif
+	else
+		return (0);
+
+	if (ioh)
+		*ioh = help;
+	return (1);
+}
+
+#ifdef notyet
+
+bool
+zynquart_cleanup(device_t self, int how)
+{
+/*
+ * this routine exists to serve as a shutdown hook for systems that
+ * have firmware which doesn't interact properly with a zynquart device in
+ * FIFO mode.
+ */
+	struct zynquart_softc *sc = device_private(self);
+
+	if (ISSET(sc->sc_hwflags, ZYNQUART_HW_FIFO))
+		UR_WRITE_1(&sc->sc_regs, ZYNQUART_REG_FIFO, 0);
+
+	return true;
+}
+#endif
+
+#ifdef notyet
+bool
+zynquart_suspend(device_t self PMF_FN_ARGS)
+{
+	struct zynquart_softc *sc = device_private(self);
+
+	UR_WRITE_1(&sc->sc_regs, ZYNQUART_REG_IER, 0);
+	(void)CSR_READ_1(&sc->sc_regs, ZYNQUART_REG_IIR);
+
+	return true;
+}
+#endif
+
+#ifdef notyet
+bool
+zynquart_resume(device_t self PMF_FN_ARGS)
+{
+	struct zynquart_softc *sc = device_private(self);
+
+	mutex_spin_enter(&sc->sc_lock);
+	zynquart_loadchannelregs(sc);
+	mutex_spin_exit(&sc->sc_lock);
+
+	return true;
+}
+#endif
+
+static void
+zynquart_enable_debugport(struct zynquart_softc *sc)
+{
+	/* bus_space_tag_t iot = sc->sc_regs.ur_iot; */
+	/* bus_space_handle_t ioh = sc->sc_regs.ur_ioh; */
+}
+
+
+void
+zynquart_set_frequency(u_int freq, u_int div)
+{
+	zynquart_freq = freq;
+	zynquart_freqdiv = div;
+}
Index: src/sys/arch/arm/xilinx/zynq_uartreg.h
diff -u /dev/null src/sys/arch/arm/xilinx/zynq_uartreg.h:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq_uartreg.h	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,110 @@
+/*	$NetBSD: zynq_uartreg.h,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+/*-
+ * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef	_ARM_XILINX_ZYNQ_UARTREG_H
+#define	_ARM_XILINX_ZYNQ_UARTREG_H
+
+/* register offset address */
+#define UART_CONTROL		0x00000000	/* UART Control Register */
+#define  CR_STPBRK		__BIT(8)
+#define  CR_STTBRK		__BIT(7)
+#define  CR_RSTTO		__BIT(6)
+#define  CR_TXDIS		__BIT(5)
+#define  CR_TXEN		__BIT(4)
+#define  CR_RXDIS		__BIT(3)
+#define  CR_RXEN		__BIT(2)
+#define  CR_TXRES		__BIT(1)
+#define  CR_RXRES		__BIT(0)
+#define UART_MODE		0x00000004	/* UART Mode Register */
+#define  MR_CHMODE		__BITS(9, 8)
+#define  MR_NBSTOP		__BITS(7, 6)
+#define   NBSTOP_1		__SHIFTIN(0, MR_NBSTOP)
+#define   NBSTOP_15		__SHIFTIN(1, MR_NBSTOP)
+#define   NBSTOP_2		__SHIFTIN(2, MR_NBSTOP)
+#define  MR_PAR			__BITS(5, 3)
+#define   PAR_EVEN		__SHIFTIN(0, MR_PAR)
+#define   PAR_ODD		__SHIFTIN(1, MR_PAR)
+#define   PAR_ZERO		__SHIFTIN(2, MR_PAR)
+#define   PAR_ONE		__SHIFTIN(3, MR_PAR)
+#define   PAR_NONE		__SHIFTIN(4, MR_PAR)
+#define  MR_CHRL		__BITS(2, 1)
+#define   CHRL_6BIT		__SHIFTIN(3, MR_CHRL)
+#define   CHRL_7BIT		__SHIFTIN(2, MR_CHRL)
+#define   CHRL_8BIT		__SHIFTIN(1, MR_CHRL)
+#define  MR_CLKS		__BIT(0)
+#define UART_INTRPT_EN		0x00000008	/* Interrupt Enable Register */
+#define UART_INTRPT_DIS		0x0000000C	/* Interrupt Disable Register */
+#define UART_INTRPT_MASK	0x00000010	/* Interrupt Mask Register */
+#define UART_CHNL_INT_STS	0x00000014	/* Channel Interrupt Status Register */
+#define  INT_TOVR		__BIT(12)
+#define  INT_TNFUL		__BIT(11)
+#define  INT_TTRIG		__BIT(10)
+#define  INT_DMSI		__BIT(9)
+#define  INT_TIMEOUT		__BIT(8)
+#define  INT_PARE		__BIT(7)
+#define  INT_FRAME		__BIT(6)
+#define  INT_ROVR		__BIT(5)
+#define  INT_TFUL		__BIT(4)
+#define  INT_TEMPTY		__BIT(3)
+#define  INT_RFUL		__BIT(2)
+#define  INT_REMPTY		__BIT(1)
+#define  INT_RTRIG		__BIT(0)
+#define UART_BAUD_RATE_GEN	0x00000018	/* Baud Rate Generator Register. */
+#define UART_RCVR_TIMEOUT	0x0000001C	/* Receiver Timeout Register */
+#define UART_RCVR_FIFO_TRIGGER	0x00000020	/* Receiver FIFO Trigger Level Register */
+#define UART_MODEM_CTRL		0x00000024	/* Modem Control Register */
+#define  MODEMCR_FCM		__BIT(5)
+#define  MODEMCR_RTS		__BIT(1)
+#define  MODEMCR_DTR		__BIT(0)
+#define UART_MODEM_STS		0x00000028	/* Modem Status Register */
+#define  MODEMSR_FCMS		__BIT(8)
+#define  MODEMSR_DCD		__BIT(7)
+#define  MODEMSR_RI		__BIT(6)
+#define  MODEMSR_DSR		__BIT(5)
+#define  MODEMSR_CTS		__BIT(4)
+#define  MODEMSR_DDCD		__BIT(3)
+#define  MODEMSR_TERI		__BIT(2)
+#define  MODEMSR_DDSR		__BIT(1)
+#define  MODEMSR_DCTS		__BIT(0)
+#define UART_CHANNEL_STS	0x0000002C	/* Channel Status Register */
+#define  STS_TNFUL		__BIT(14)
+#define  STS_TTRIG		__BIT(13)
+#define  STS_FDELT		__BIT(12)
+#define  STS_TAVTIVE		__BIT(11)
+#define  STS_RACTIVE		__BIT(10)
+#define  STS_TFUL		__BIT(4)
+#define  STS_TEMPTY		__BIT(3)
+#define  STS_RFUL		__BIT(2)
+#define  STS_REMPTY		__BIT(1)
+#define  STS_RTRIG		__BIT(0)
+#define UART_TX_RX_FIFO		0x00000030	/* Transmit and Receive FIFO */
+#define UART_BAUD_RATE_DIVIDER	0x00000034	/* Baud Rate Divider Register */
+#define UART_FLOW_DELAY		0x00000038	/* Flow Control Delay Register */
+#define UART_TX_FIFO_TRIGGER	0x00000044	/* Transmitter FIFO Trigger */
+
+#endif /* _ARM_XILINX_ZYNQ_UARTREG_H */
+
Index: src/sys/arch/arm/xilinx/zynq_uartvar.h
diff -u /dev/null src/sys/arch/arm/xilinx/zynq_uartvar.h:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq_uartvar.h	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,53 @@
+/*	$NetBSD: zynq_uartvar.h,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+/*-
+ * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef	_ARM_XILINX_ZYNQ_UARTVAR_H
+#define	_ARM_XILINX_ZYNQ_UARTVAR_H
+
+#include  <sys/cdefs.h>
+#include  <sys/termios.h>	/* for tcflag_t */
+
+#define ERROR_BITS __BITS(31, 16)
+
+void zynquart_attach_common(device_t parent, device_t self,
+    bus_space_tag_t, paddr_t, size_t, int);
+
+int zynquart_kgdb_attach(bus_space_tag_t, paddr_t, u_int, tcflag_t);
+int zynquart_cons_attach(bus_space_tag_t, paddr_t, u_int, tcflag_t);
+
+int zynquart_is_console(bus_space_tag_t, bus_addr_t, bus_space_handle_t *);
+int zynquartintr(void *);
+
+/*
+ * Set platform dependent values
+ */
+void zynquart_set_frequency(u_int, u_int);
+
+int zynquart_match(device_t, cfdata_t, void *);
+void zynquart_attach(device_t, device_t, void *);
+
+#endif /* _ARM_XILINX_ZYNQ_UARTVAR_H */
Index: src/sys/arch/arm/xilinx/zynq_usb.c
diff -u /dev/null src/sys/arch/arm/xilinx/zynq_usb.c:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq_usb.c	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,371 @@
+/*	$NetBSD: zynq_usb.c,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+
+/*-
+ * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: zynq_usb.c,v 1.1 2019/06/11 13:01:48 skrll Exp $");
+
+#include "opt_soc.h"
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/conf.h>
+#include <sys/device.h>
+#include <sys/kernel.h>
+#include <sys/intr.h>
+#include <sys/systm.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+#include <dev/usb/usbdivar.h>
+#include <dev/usb/usb_mem.h>
+
+#include <dev/usb/ehcireg.h>
+#include <dev/usb/ehcivar.h>
+#include <dev/usb/ulpireg.h>
+
+#include <arm/xilinx/zynq_usbreg.h>
+#include <arm/xilinx/zynq_usbvar.h>
+
+#include "locators.h"
+
+static uint8_t ulpi_read(struct zynqehci_softc *sc, int addr);
+static void ulpi_write(struct zynqehci_softc *sc, int addr, uint8_t data);
+static void ulpi_reset(struct zynqehci_softc *sc);
+
+static void zynqusb_select_interface(struct zynqehci_softc *, enum zynq_usb_if);
+static void zynqusb_init(struct ehci_softc *);
+static void zynqusb_reset(struct zynqehci_softc *);
+
+void
+zynqusb_attach_common(device_t parent, device_t self, bus_space_tag_t iot,
+    bus_dma_tag_t dmat, paddr_t iobase, size_t size, int flags,
+    enum zynq_usb_if type, enum zynq_usb_role role)
+{
+	struct zynqehci_softc *sc = device_private(self);
+	ehci_softc_t *hsc = &sc->sc_hsc;
+	uint16_t hcirev;
+	uint32_t id, hwhost, hwdevice;
+	const char *comma;
+
+	sc->sc_hsc.sc_dev = self;
+	sc->sc_iot = sc->sc_hsc.iot = iot;
+	sc->sc_iftype = type;
+	sc->sc_role = role;
+
+	hsc->sc_bus.ub_hcpriv = sc;
+	hsc->sc_bus.ub_revision = USBREV_2_0;
+	hsc->sc_flags |= EHCIF_ETTF;
+	hsc->sc_vendor_init = zynqusb_init;
+
+	aprint_normal("\n");
+
+	if (bus_space_map(iot, iobase, size, 0, &sc->sc_ioh)) {
+
+		aprint_error_dev(self, "unable to map device\n");
+		return;
+	}
+
+	if (bus_space_subregion(iot, sc->sc_ioh,
+		ZYNQUSB_EHCIREGS, ZYNQUSB_EHCI_SIZE - ZYNQUSB_EHCIREGS,
+		&sc->sc_hsc.ioh)) {
+
+		aprint_error_dev(self, "unable to map subregion\n");
+		return;
+	}
+
+	id = bus_space_read_4(iot, sc->sc_ioh, ZYNQUSB_ID);
+	hcirev = bus_space_read_2(iot, sc->sc_hsc.ioh, EHCI_HCIVERSION);
+
+	aprint_normal_dev(self,
+	    "Zynq USB Controller id=%d revision=%d version=%d\n",
+	    (int)__SHIFTOUT(id, ZYNQUSB_ID_ID),
+	    (int)__SHIFTOUT(id, ZYNQUSB_ID_REVISION),
+	    (int)__SHIFTOUT(id, ZYNQUSB_ID_VERSION));
+	aprint_normal_dev(self, "HCI revision=0x%x\n", hcirev);
+
+	hwhost = bus_space_read_4(iot, sc->sc_ioh, ZYNQUSB_HWHOST);
+	hwdevice = bus_space_read_4(iot, sc->sc_ioh, ZYNQUSB_HWDEVICE);
+
+	aprint_normal_dev(self, "");
+
+	comma = "";
+	if (hwhost & HWHOST_HC) {
+		int n_ports = 1 + __SHIFTOUT(hwhost, HWHOST_NPORT);
+		aprint_normal("%d host port%s",
+		    n_ports, n_ports > 1 ? "s" : "");
+		comma = ", ";
+	}
+
+	if (hwdevice & HWDEVICE_DC) {
+		int n_endpoints = __SHIFTOUT(hwdevice, HWDEVICE_DEVEP);
+		aprint_normal("%sdevice capable, %d endpoint%s",
+		    comma,
+		    n_endpoints, n_endpoints > 1 ? "s" : "");
+	}
+	aprint_normal("\n");
+
+	sc->sc_hsc.sc_bus.ub_dmatag = dmat;
+
+	sc->sc_hsc.sc_offs = bus_space_read_1(iot, sc->sc_hsc.ioh,
+	    EHCI_CAPLENGTH);
+
+	zynqusb_reset(sc);
+	zynqusb_select_interface(sc, sc->sc_iftype);
+
+	if (sc->sc_iftype == ZYNQUSBC_IF_ULPI) {
+		bus_space_write_4(sc->sc_iot, sc->sc_ioh, ZYNQUSB_ULPIVIEW, 0);
+
+		aprint_normal_dev(hsc->sc_dev,
+		    "ULPI phy VID 0x%04x PID 0x%04x\n",
+		    (ulpi_read(sc, ULPI_VENDOR_ID_LOW) |
+			ulpi_read(sc, ULPI_VENDOR_ID_HIGH) << 8),
+		    (ulpi_read(sc, ULPI_PRODUCT_ID_LOW) |
+			ulpi_read(sc, ULPI_PRODUCT_ID_HIGH) << 8));
+
+		ulpi_reset(sc);
+	}
+
+	if (sc->sc_iftype == ZYNQUSBC_IF_ULPI) {
+		if (hsc->sc_bus.ub_revision == USBREV_2_0) {
+			ulpi_write(sc, ULPI_FUNCTION_CONTROL + ULPI_REG_CLEAR,
+			    FUNCTION_CONTROL_XCVRSELECT);
+			ulpi_write(sc, ULPI_FUNCTION_CONTROL + ULPI_REG_SET,
+			    FUNCTION_CONTROL_TERMSELECT);
+		} else {
+			ulpi_write(sc, ULPI_FUNCTION_CONTROL + ULPI_REG_SET,
+			    XCVRSELECT_FSLS);
+			ulpi_write(sc, ULPI_FUNCTION_CONTROL + ULPI_REG_CLEAR,
+			    FUNCTION_CONTROL_TERMSELECT);
+		}
+
+		ulpi_write(sc, ULPI_OTG_CONTROL + ULPI_REG_SET,
+		    OTG_CONTROL_USEEXTVBUSIND |
+		    OTG_CONTROL_DRVVBUSEXT |
+		    OTG_CONTROL_DRVVBUS |
+		    OTG_CONTROL_CHRGVBUS);
+	}
+
+	/* Disable interrupts, so we don't get any spurious ones. */
+	EOWRITE4(hsc, EHCI_USBINTR, 0);
+
+	/*intr_establish(intr, IPL_USB, IST_LEVEL, ehci_intr, hsc);*/
+
+	int err = ehci_init(hsc);
+	if (err) {
+		aprint_error_dev(self, "init failed, error = %d\n", err);
+		return;
+	}
+
+	/* Attach usb device. */
+	hsc->sc_child = config_found(self, &hsc->sc_bus, usbctlprint);
+}
+
+static void
+zynqusb_select_interface(struct zynqehci_softc *sc, enum zynq_usb_if interface)
+{
+	uint32_t reg;
+	struct ehci_softc *hsc = &sc->sc_hsc;
+
+	reg = EOREAD4(hsc, EHCI_PORTSC(1));
+	reg &= ~(PORTSC_PTS | PORTSC_PTW);
+	switch (interface) {
+	case ZYNQUSBC_IF_UTMI_WIDE:
+		reg |= PORTSC_PTW_16;
+	case ZYNQUSBC_IF_UTMI:
+		reg |= PORTSC_PTS_UTMI;
+		break;
+	case ZYNQUSBC_IF_PHILIPS:
+		reg |= PORTSC_PTS_PHILIPS;
+		break;
+	case ZYNQUSBC_IF_ULPI:
+		reg |= PORTSC_PTS_ULPI;
+		break;
+	case ZYNQUSBC_IF_SERIAL:
+		reg |= PORTSC_PTS_SERIAL;
+		break;
+	}
+	EOWRITE4(hsc, EHCI_PORTSC(1), reg);
+}
+
+static uint32_t
+ulpi_wakeup(struct zynqehci_softc *sc, int tout)
+{
+	uint32_t ulpi_view;
+	int i = 0;
+	ulpi_view = bus_space_read_4(sc->sc_iot, sc->sc_ioh, ZYNQUSB_ULPIVIEW);
+
+	if ( !(ulpi_view & ULPI_SS) ) {
+		bus_space_write_4(sc->sc_iot, sc->sc_ioh,
+		    ZYNQUSB_ULPIVIEW, ULPI_WU);
+		for (i = 0; (tout < 0) || (i < tout); i++) {
+			ulpi_view = bus_space_read_4(sc->sc_iot,
+			    sc->sc_ioh, ZYNQUSB_ULPIVIEW);
+			if ( !(ulpi_view & ULPI_WU) )
+				break;
+			delay(1);
+		};
+	}
+
+	if ((tout > 0) && (i >= tout)) {
+		aprint_error_dev(sc->sc_hsc.sc_dev, "%s: timeout\n", __func__);
+	}
+
+	return ulpi_view;
+}
+
+static uint32_t
+ulpi_wait(struct zynqehci_softc *sc, int tout)
+{
+	uint32_t ulpi_view;
+	int i;
+	ulpi_view = bus_space_read_4(sc->sc_iot, sc->sc_ioh, ZYNQUSB_ULPIVIEW);
+
+	for (i = 0; (tout < 0) | (i < tout); i++) {
+		ulpi_view = bus_space_read_4(sc->sc_iot, sc->sc_ioh,
+		    ZYNQUSB_ULPIVIEW);
+		if (!(ulpi_view & ULPI_RUN))
+			break;
+		delay(1);
+	}
+
+	if ((tout > 0) && (i >= tout)) {
+		aprint_error_dev(sc->sc_hsc.sc_dev, "%s: timeout\n", __func__);
+	}
+
+	return ulpi_view;
+}
+
+#define	TIMEOUT	100000
+
+static uint8_t
+ulpi_read(struct zynqehci_softc *sc, int addr)
+{
+	uint32_t data;
+
+	ulpi_wakeup(sc, TIMEOUT);
+
+	data = ULPI_RUN | __SHIFTIN(addr, ULPI_ADDR);
+	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ZYNQUSB_ULPIVIEW, data);
+
+	data = ulpi_wait(sc, TIMEOUT);
+
+	return __SHIFTOUT(data, ULPI_DATRD);
+}
+
+static void
+ulpi_write(struct zynqehci_softc *sc, int addr, uint8_t data)
+{
+	uint32_t reg;
+
+	ulpi_wakeup(sc, TIMEOUT);
+
+	reg = ULPI_RUN | ULPI_RW | __SHIFTIN(addr, ULPI_ADDR) | __SHIFTIN(data, ULPI_DATWR);
+	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ZYNQUSB_ULPIVIEW, reg);
+
+	ulpi_wait(sc, TIMEOUT);
+
+	return;
+}
+
+static void
+ulpi_reset(struct zynqehci_softc *sc)
+{
+	uint8_t data;
+	int timo = 1000 * 1000;	/* XXXX: 1sec */
+
+	ulpi_write(sc, ULPI_FUNCTION_CONTROL + ULPI_REG_SET,
+	    FUNCTION_CONTROL_RESET /*0x20*/);
+	do {
+		data = ulpi_read(sc, ULPI_FUNCTION_CONTROL);
+		if (!(data & FUNCTION_CONTROL_RESET))
+			break;
+		delay(100);
+		timo -= 100;
+	} while (timo > 0);
+	if (timo <= 0) {
+		aprint_error_dev(sc->sc_hsc.sc_dev, "%s: reset failed!!\n",
+		    __func__);
+		return;
+	}
+
+	return;
+}
+
+static void
+zynqusb_reset(struct zynqehci_softc *sc)
+{
+	uint32_t reg;
+	int i;
+	struct ehci_softc *hsc = &sc->sc_hsc;
+#define	RESET_TIMEOUT 100
+	reg = EOREAD4(hsc, EHCI_USBCMD);
+	reg &= ~EHCI_CMD_RS;
+	EOWRITE4(hsc, EHCI_USBCMD, reg);
+
+	for (i=0; i < RESET_TIMEOUT; ++i) {
+		reg = EOREAD4(hsc, EHCI_USBCMD);
+		if ((reg & EHCI_CMD_RS) == 0)
+			break;
+		usb_delay_ms(&hsc->sc_bus, 1);
+	}
+
+	EOWRITE4(hsc, EHCI_USBCMD, reg | EHCI_CMD_HCRESET);
+	for (i = 0; i < RESET_TIMEOUT; i++) {
+		reg = EOREAD4(hsc, EHCI_USBCMD);
+		if ((reg &  EHCI_CMD_HCRESET) == 0)
+			break;
+		usb_delay_ms(&hsc->sc_bus, 1);
+	}
+	if (i >= RESET_TIMEOUT) {
+		aprint_error_dev(hsc->sc_dev, "reset timeout (%x)\n", reg);
+	}
+
+	usb_delay_ms(&hsc->sc_bus, 100);
+}
+
+static void
+zynqusb_init(struct ehci_softc *hsc)
+{
+	struct zynqehci_softc *sc = device_private(hsc->sc_dev);
+	uint32_t reg;
+
+	reg = EOREAD4(hsc, EHCI_PORTSC(1));
+	reg &= ~(EHCI_PS_CSC | EHCI_PS_PEC | EHCI_PS_OCC);
+	reg |= EHCI_PS_PP | EHCI_PS_PE;
+	EOWRITE4(hsc, EHCI_PORTSC(1), reg);
+
+	reg = bus_space_read_4(sc->sc_iot, sc->sc_ioh, ZYNQUSB_OTGSC);
+	reg |= OTGSC_IDPU;
+	reg |= OTGSC_DPIE | OTGSC_IDIE;
+	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ZYNQUSB_OTGSC, reg);
+
+	reg = bus_space_read_4(sc->sc_iot, sc->sc_ioh, ZYNQUSB_USBMODE);
+	reg &= ~USBMODE_CM;
+	reg |= USBMODE_CM_HOST;
+	bus_space_write_4(sc->sc_iot, sc->sc_ioh, ZYNQUSB_USBMODE, reg);
+}
Index: src/sys/arch/arm/xilinx/zynq_usbreg.h
diff -u /dev/null src/sys/arch/arm/xilinx/zynq_usbreg.h:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq_usbreg.h	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,112 @@
+/*	$NetBSD: zynq_usbreg.h,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+/*-
+ * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _ARM_XILINX_ZYNQUSBREG_H
+#define _ARM_XILINX_ZYNQUSBREG_H
+
+#define	ZYNQUSB_ID		0x0000
+#define	 ZYNQUSB_ID_ID		__BITS(5,0)
+#define	 ZYNQUSB_ID_NID		__BITS(13,8)
+#define	 ZYNQUSB_ID_TAG		__BITS(20,16)
+#define	 ZYNQUSB_ID_REVISION	__BITS(24,21)
+#define	 ZYNQUSB_ID_VERSION	__BITS(28,25)
+#define	 ZYNQUSB_ID_CIVERSION	__BITS(31,29)
+#define	ZYNQUSB_HWGENERAL	0x0004
+#define	ZYNQUSB_HWHOST		0x0008
+#define	 HWHOST_HC		__BIT(0)
+#define	 HWHOST_NPORT		__BITS(3,1)
+#define	ZYNQUSB_HWDEVICE	0x000c
+#define	 HWDEVICE_DC		__BIT(0)
+#define	 HWDEVICE_DEVEP		__BITS(5,1)
+#define	ZYNQUSB_HWTXBUF		0x0010
+#define	ZYNQUSB_HWRXBUF		0x0014
+
+#define	ZYNQUSB_EHCIREGS	0x0100
+
+#define	ZYNQUSB_ULPIVIEW	0x0170
+#define	 ULPI_WU		__BIT(31)
+#define	 ULPI_RUN		__BIT(30)
+#define	 ULPI_RW		__BIT(29)
+#define	 ULPI_SS		__BIT(27)
+#define	 ULPI_PORT		__BITS(26,24)
+#define	 ULPI_ADDR		__BITS(23,16)
+#define	 ULPI_DATRD		__BITS(15,8)
+#define	 ULPI_DATWR		__BITS(7,0)
+
+#define	ZYNQUSB_OTGSC		0x01A4
+#define	 OTGSC_DPIE		__BIT(30)
+#define	 OTGSC_1MSE		__BIT(29)
+#define	 OTGSC_BSEIE		__BIT(28)
+#define	 OTGSC_BSVIE		__BIT(27)
+#define	 OTGSC_ASVIE		__BIT(26)
+#define	 OTGSC_AVVIE		__BIT(25)
+#define	 OTGSC_IDIE		__BIT(24)
+#define	 OTGSC_DPIS		__BIT(22)
+#define	 OTGSC_1MSS		__BIT(21)
+#define	 OTGSC_BSEIS		__BIT(20)
+#define	 OTGSC_BSVIS		__BIT(19)
+#define	 OTGSC_ASVIS		__BIT(18)
+#define	 OTGSC_AVVIS		__BIT(17)
+#define	 OTGSC_IDIS		__BIT(16)
+#define	 OTGSC_DPS		__BIT(14)
+#define	 OTGSC_1MST		__BIT(13)
+#define	 OTGSC_BSE		__BIT(12)
+#define	 OTGSC_BSV		__BIT(11)
+#define	 OTGSC_ASV		__BIT(10)
+#define	 OTGSC_AVV		__BIT( 9)
+#define	 OTGSC_ID		__BIT( 8)
+#define  OTGSC_HABA		__BIT( 7)
+#define  OTGSC_HADP		__BIT( 6)
+#define	 OTGSC_IDPU		__BIT( 5)
+#define	 OTGSC_DP		__BIT( 4)
+#define	 OTGSC_OT		__BIT( 3)
+#define  OTGSC_HAAR		__BIT( 2)
+#define	 OTGSC_VC		__BIT( 1)
+#define	 OTGSC_VD		__BIT( 0)
+#define	ZYNQUSB_USBMODE		0x01A8
+#define	 USBMODE_CM		__BITS(1,0)
+#define	 USBMODE_CM_IDLE	__SHIFTIN(0, USBMODE_CM)
+#define	 USBMODE_CM_DEVICE	__SHIFTIN(2, USBMODE_CM)
+#define	 USBMODE_CM_HOST	__SHIFTIN(3, USBMODE_CM)
+
+#define	ZYNQUSB_EHCI_SIZE	0x200
+
+/* extension to PORTSCx register of EHCI. */
+#define	PORTSC_PTS		__BITS(31,30)
+#define	PORTSC_PTS_UTMI		__SHIFTIN(0, PORTSC_PTS)
+#define	PORTSC_PTS_PHILIPS	__SHIFTIN(1, PORTSC_PTS)
+#define	PORTSC_PTS_ULPI		__SHIFTIN(2, PORTSC_PTS)
+#define	PORTSC_PTS_SERIAL	__SHIFTIN(3, PORTSC_PTS)
+#define	PORTSC_STS		__BIT(29)	/* serial transeiver select */
+#define	PORTSC_PTW		__BIT(28)	/* parallel transceiver width */
+#define	PORTSC_PTW_8		0
+#define	PORTSC_PTW_16		PORTSC_PTW
+#define	PORTSC_PSPD		__BITS(26,27)	/* port speed (RO) */
+#define	PORTSC_PFSC		__BIT(24)	/* port force full speed */
+#define	PORTSC_PHCD		__BIT(23)	/* PHY low power suspend */
+
+#endif /* _ARM_XILINX_ZYNQUSBREG_H */
Index: src/sys/arch/arm/xilinx/zynq_usbvar.h
diff -u /dev/null src/sys/arch/arm/xilinx/zynq_usbvar.h:1.1
--- /dev/null	Tue Jun 11 13:01:48 2019
+++ src/sys/arch/arm/xilinx/zynq_usbvar.h	Tue Jun 11 13:01:48 2019
@@ -0,0 +1,61 @@
+/*	$NetBSD: zynq_usbvar.h,v 1.1 2019/06/11 13:01:48 skrll Exp $	*/
+/*-
+ * Copyright (c) 2015  Genetec Corporation.  All rights reserved.
+ * Written by Hashimoto Kenichi for Genetec Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _ARM_XILINX_ZYNQ_USBVAR_H
+#define _ARM_XILINX_ZYNQ_USBVAR_H
+
+struct zynqehci_softc;
+
+enum zynq_usb_role {
+	ZYNQUSB_HOST,
+	ZYNQUSB_DEVICE,
+	ZYNQUSB_OTG
+};
+
+enum zynq_usb_if {
+	ZYNQUSBC_IF_UTMI,
+	ZYNQUSBC_IF_PHILIPS,
+	ZYNQUSBC_IF_ULPI,
+	ZYNQUSBC_IF_SERIAL,
+	ZYNQUSBC_IF_UTMI_WIDE
+};
+
+struct zynqehci_softc {
+	ehci_softc_t sc_hsc;
+
+	bus_space_tag_t sc_iot;
+	bus_space_handle_t sc_ioh;
+	struct zynqusbc_softc *sc_usbc;
+	enum zynq_usb_if sc_iftype;
+	enum zynq_usb_role sc_role;
+};
+
+void zynqusb_attach_common(device_t parent, device_t self,
+    bus_space_tag_t, bus_dma_tag_t, paddr_t, size_t, int,
+    enum zynq_usb_if, enum zynq_usb_role);
+
+#endif	/* _ARM_XILINX_ZYNQ_USBVAR_H */

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